90-Day Vagus Nerve Protocol: Build Unshakeable Stress Resilience

How this programme adapts

Once a week, the player runs a short check-in and reads the week you actually logged — not the week the plan assumed. Every check-in lands on one of the adjustments below. These are the engine's own rules, rendered word for word.

Consolidation week
Sparse data this week. The programme holds your current practices exactly and focuses on the daily check-in anchor before adjusting anything.
Build your practice base
Two or fewer breathing sessions logged this week. The priority is showing up for your daily session before adding length or intensity. No new steps until consistency is established.
Support your recovery rate
Your recovery ratings are low this week. We add 5 minutes to your daily breathing session to build practice volume, then reassess next check-in.
Strong practice week
Excellent compliance and good recovery scores. You can shorten your sessions by 5 minutes if time pressure is a barrier to consistency. Quality and regularity matter more than maximum duration.
On track
Your numbers are in a solid range. This week maintains your current practice and layers in the next scheduled anchors.

Pattern insights are gated behind your own record: the first unlocks after 5 logged days, and every insight states the evidence it stands on. Milestone reviews at day 30, day 60, day 90 read your whole record and choose their coaching from it.

The 90-day programme map

Every day of the programme, in full — the same steps the interactive player walks you through. Expand a week to read its days.

Month 1 — Foundation · Days 1–30

Establish your autonomic baseline and introduce your core breathing and recovery anchors

Week 1Autonomic AwarenessDays 1–7

Day 1 · Your Autonomic Map 10 min

Welcome to Day 1. This week is observation before action. You do not need to change anything yet. The sole job today is to establish your morning check-in anchor and orient yourself to the programme.

Each morning, before checking your phone, spend 1 minute sitting quietly and notice your resting heart rate or your overall sense of readiness
Set a consistent daily time slot for your breathing practice. You will add the practice itself on Day 3. Reserve the time now.
Read the Research Foundation panel in this protocol to familiarise yourself with the five evidence frameworks.

Day 2 · Map Your Stress Response 10 min

Today you start building a map of your own stress-response patterns. There is nothing to fix yet. Observation is the whole task. The polyvagal framework offers a useful model — one with contested neuroanatomy that continues to be debated in the research literature — but its practical lens is worth using: your autonomic system moves through different states of readiness, and knowing your personal triggers is the first step toward working with them.

Write down three situations from the past week that left you feeling tense or reactive, and roughly how long each took before you felt settled again.
During one stressful or demanding moment today, notice your breathing without trying to change it. Note whether it is fast, shallow, held, or erratic.

Day 3 · The Breathing Anchor 15 min

Today you install the central anchor of this programme: a daily slow breathing session. The rate of approximately 5 to 6 breaths per minute is the one most consistently studied in HRV biofeedback research. Start with 5 minutes. You will build duration gradually over the coming weeks. If you have a heart condition, a breathing disorder, or are pregnant, talk to your physician before starting breathing practices. This programme is not treatment.

At your reserved daily time, complete one session of slow breathing: inhale 5 seconds through the nose, exhale 5 seconds through the nose or mouth, for at least 5 minutes
Set a recurring alarm or calendar block for your daily breathing session time.
Complete today's session right now to establish the pattern. Sit upright in a comfortable chair.

Day 4 · Observe Your Recovery Window 10 min

Today the observation task is your recovery window: how long it takes for your system to settle after a genuine stressor. This is the baseline you will track across the programme. No target, no benchmark, just your current pattern mapped in time.

After a work task, a difficult conversation, or any mild stressor today, sit quietly and time how many minutes until your heart rate and breathing feel settled.
Note the duration alongside the type of stressor. This is your Day 4 baseline for the recovery window.

Day 5 · The Post-Meal Pause 10 min

Today you add a second short anchor: a screen-free pause after your main meal. This is not a meditation practice. It is a simple scheduled pause that gives your nervous system a brief break from input in the middle of the day without requiring a separate session.

After your main meal of the day, sit without a screen for 3 minutes before returning to activity
Try the post-meal pause after lunch or dinner today and note how easy or difficult it is to remain still for 3 minutes.

Day 6 · Tension Patterns 10 min

This week continues with observation. Today you add a second data point by rating your alertness and tension at three points across the day. You are building a picture of your autonomic cycles before any change in practice adjusts them.

At three points today (morning, midday, and evening), rate your stress level from 1 to 5 and write it down.
Notice where in your body you hold tension most consistently. Common sites are the jaw, shoulders, and stomach. Note what you find.

Day 7 · Week 1 Reflection 10 min

Today closes your first week of observation. You have established your morning check-in, your breathing-session slot, and your stress map. Review what your map says about which situations your system reliably reads as demanding versus safe. This is the data base for the rest of the programme.

Review your stress notes from the week. Which situation took the longest to recover from, and what was different about it?
Complete your weekly check-in to set your Week 1 baseline.

Week 2Breathing BasicsDays 8–14

Day 8 · Extend Your Breathing Session 20 min

This week deepens your breathing practice. The HRV biofeedback literature uses sessions in the 10 to 20 minute range as the studied protocol. Today the session extends to 10 minutes. The 5-minute sessions of Week 1 established the anchor. This week begins building the depth.

Today, extend your breathing session to 10 minutes at 5 to 6 breaths per minute. If lightheaded, return to normal breathing and resume when ready.
Update your calendar alert to reflect the new 10-minute session length.

Day 9 · Your Resonance Frequency 15 min

Most adults fall into a comfortable resonance breathing rate between 5 and 7 breaths per minute, though individual variation is real. Today you explore which pace within that range feels least effortful for you. Ease of pace, not counting or performance, is the signal.

During your breathing session today, spend 3 minutes each on three ratios: 5s in / 5s out, 4s in / 6s out, and 4s in / 4s out. Return to normal breathing if lightheaded.
After the session, note which ratio felt most natural and produced the clearest sense of settling.

Day 10 · The Physiological Sigh 15 min

Today you add your third behavioural anchor: the physiological sigh. This is a real-time stress-response tool to use between formal sessions. A double inhale through the nose followed by a long exhale is a naturally occurring breathing pattern that your body uses automatically. Today you make it deliberate.

Whenever you notice tension, agitation, or held breath during the day, take one physiological sigh: two inhales through the nose (a long first inhale, then a short second inhale on top), followed by a long slow exhale through the mouth
Practice five physiological sighs right now to build familiarity with the technique before deploying it in real situations.

Day 11 · Track Your Recovery Window 10 min

Last week you took your Day 4 recovery baseline. Today you take a second measurement. You are looking for a pattern across conditions and time, not a single number. Two data points are the beginning of a trend.

After a genuine stressor today, use a physiological sigh first, then sit quietly and time how long until you feel settled.
Compare today's recovery window to your Day 4 baseline. Note whether the duration is similar, shorter, or longer, and what might account for any difference.

Day 12 · Practice Timing 20 min

The same breathing practice can feel quite different at different times of day depending on your alertness level and what you have already done. Today you run a small experiment with two short sessions at different times. The contrast helps you identify your optimal practice window.

Complete a 5-minute breathing session in the morning before checking any screens. Note the quality of ease on a 1 to 5 scale.
Complete a second 5-minute session in the late afternoon. Compare the depth of settling to the morning session and note what you observe.

Day 13 · Social Awareness 10 min

The social engagement piece of this programme begins with observation. Today you notice how your body responds to different types of interaction. Some interactions reliably leave you calmer; others do not. Mapping this is the practical foundation for the daily connection anchor you will introduce in Week 4.

Write down two people in your life with whom you feel genuinely at ease. Note what is different about those relationships compared to more demanding acquaintances or colleagues.
During one interaction today, notice how your breathing, posture, and alertness level shift before and after. Write two sentences about what you observe.

Day 14 · Week 2 Reflection 10 min

Two weeks in. You now have four daily anchors: the morning check-in, the breathing session, the physiological sigh, and the post-meal pause. This week added breathing depth and timing awareness. Your reflection today sets you up for Week 3 recovery work.

Complete your weekly check-in.
Note which breathing ratio felt most natural this week and write it down as your working baseline for the weeks ahead.

Week 3Recovery HabitsDays 15–21

Day 15 · Post-Stress Recovery Breathing 15 min

This week focuses on recovery. Today you install a deliberate post-stress breathing anchor. The slow breathing practice you have been building in daily sessions now has a second deployment: as a recovery tool in the minutes immediately after activation.

After any stressful event, before returning to the next task, spend 3 minutes breathing slowly at 5 to 6 breaths per minute
Identify two predictable daily stress points (a meeting, a commute, a decision window) where you can plan to deploy the post-stress recovery routine.

Day 16 · Progressive Muscle Release 15 min

Chronic muscle tension in the jaw, neck, and shoulders is a common background signal of sustained activation. Today you practice a tension-and-release scan to increase body awareness and support your breathing sessions. Notice which areas release easily and which hold tension even under deliberate attention.

Spend 5 minutes scanning from your feet upward: tense each muscle group for 5 seconds, then release. Feet, calves, thighs, abdomen, hands, shoulders, jaw.
Complete your daily breathing session immediately after the scan and note whether the quality of settling changes.
Note the two areas in your body where tension was hardest to release. These are your personal tension markers.

Day 17 · Walk for Recovery 30 min

Low-intensity aerobic movement is one of the better-studied routes to parasympathetic recovery after activation. Today you add a short walk to your toolkit. This is not training. The pace should feel easy and the breathing should stay nasal throughout.

Take a 15-minute brisk walk this afternoon, keeping a pace that lets you breathe through your nose throughout.
After the walk, sit quietly for 3 minutes and observe how quickly your heart rate settles. Compare the window to your stressor-based recovery observations from Days 4 and 11.

Day 18 · Activation Signals 10 min

Your autonomic system shifts between states throughout the day. The polyvagal framework describes these in terms of the circuits active at any moment: social engagement, mobilisation, or withdrawal. Today you map your personal activation signals, the early physical signs that your system has moved out of a settled state.

Through today, note three moments when you felt your system shift toward alert or reactive: tight chest, rapid or held breath, irritability, or a scanning quality to your attention.
For each moment, rate on a 1 to 5 scale how quickly you returned to a settled state after the activation faded.

Day 19 · The Sleep Anchor 10 min

Sleep regularity and autonomic recovery are linked in the HRV literature. A consistent wake time is among the most reliable anchors for your daily autonomic rhythm. Today you commit to one fixed wake time for the remaining 71 days of the programme.

Keep one consistent wake time every morning and use a single alarm, getting up when it sounds rather than returning to sleep
Decide on your wake time now, write it down, and set your alarm for tomorrow.

Day 20 · Breathing Before Sleep 15 min

The breathing practice you have been using during the day has a natural application at the end of it. A short slow breathing session before sleep can ease the transition out of the day's demands. Tonight you test this in the most low-demand setting available.

Tonight, 10 minutes before bed, complete a 10-minute breathing session in bed or in a chair in a dimly lit room.
Note how easily you fall asleep tonight compared to a typical evening when you do not end the day with a breathing session.

Day 21 · Week 3 Reflection 10 min

Week 3 added post-stress recovery breathing, the sleep anchor, and your first deliberate recovery walk. These three stack with your earlier anchors. Today the reflection focuses on recovery: which tool worked most reliably when your system was genuinely activated this week?

Complete your weekly check-in.
Write down the two recovery strategies that felt most useful this week and a brief note about why each worked for the type of activation you typically face.

Week 4Social EngagementDays 22–30

Day 22 · Daily Genuine Conversation 10 min

This week adds the social engagement anchor. Research on social connection and health operates at a population level, but the individual-level observation is consistent: certain types of contact leave you more settled. Today you introduce a daily minimum: one real conversation, not a text exchange.

Have at least one genuine conversation each day, whether face to face, by phone, or by video call, lasting at least 5 minutes with someone you feel genuinely at ease with
Today, notice how your breathing, posture, and alertness shift during the conversation compared to before it.

Day 23 · High-Quality Attention 10 min

The quality of a conversation matters as much as its duration. Phone-down, full-attention contact produces a different felt sense than a half-present exchange. Today you practice the full-attention version, which is also the hardest version to sustain in a notification-heavy day.

In today's connection conversation, put your phone face-down and away and give the other person your full attention for the duration.
After the conversation, note your body tension compared to before it. Did the quality of attention change the interaction?

Day 24 · Your Safety Network 10 min

Polyvagal theory uses the concept of the social engagement system, the observation that certain relational cues signal safety. Whatever the precise mechanism, the practical reality that some people reliably leave you calmer is worth mapping. Today you identify that network.

List 3 to 5 people in your life who reliably leave you feeling calmer and more settled after contact. Write one sentence about what makes each interaction different.
Reach out to one of them today, even briefly.

Day 25 · Morning Breath and Move 20 min

The combination of a morning breathing session before screen contact and a short walk creates a slow-start routine that orients the day before demands arrive. Today you test this sequence. It does not need to be long to set a different tone for the hours that follow.

Complete your daily breathing session before any screen time this morning, including phone and email.
Follow the session with a 10-minute walk at any comfortable pace.

Day 26 · Voice and Tone Observation 10 min

The polyvagal framework includes the prosody of the voice, its pace, pitch, and rhythm, as an output of autonomic state. When you are genuinely settled, your voice carries different qualities than when you are activated. This is not a performance note. It is an observation prompt.

During a phone call or in-person conversation today, notice whether your voice slows, softens, or quickens compared to your resting tone.
Notice whether the pace of the other person's voice influences your own. Write two sentences about what you observe.

Day 27 · Scheduled Leisure 60 min

Scheduled rest is not idle time. Deliberately protecting an hour for low-output activity, a walk, a creative task, or an unhurried conversation, is an active recovery strategy. In this programme, genuinely low-demand time counts alongside formal practice — the research base is strongest for structured practice, so today pairs both.

Schedule one hour today with no productivity goal: a walk, a creative activity, or an unhurried conversation.
After the hour, rate your sense of ease on a 1 to 5 scale. Note whether it differs from how you feel after a breathing session.

Day 28 · Month 1 Practice Review 15 min

You are entering the final stretch of Month 1. Today you review your breathing practice log for the past four weeks. Regularity, not perfection, is the relevant measure. Consistent practice across weeks matters more than the quality of any single session.

Count how many breathing sessions you have completed in the past four weeks. Divide by 28 to get your completion rate.
Note which week felt the most settled overall and write one sentence about what was different that week.

Day 29 · Autonomic Stocktaking 10 min

Today is a brief progress check before the month closes. You are not looking for a result yet. You are looking for any directional signal in your recovery window, your energy across the day, or your stress reactivity, compared to where you started in Week 1.

Rate your average stress reactivity this week compared to Week 1 on your personal 1 to 5 scale.
Note any situations this week where returning to a settled state felt easier or faster than it did in Week 1.

Day 30 · Month 1 Complete 10 min

Month 1 complete. You have established seven daily anchors: the morning check-in, the breathing session, the post-meal pause, the physiological sigh, post-stress recovery breathing, a consistent wake time, and a daily connection conversation. Month 2 builds depth into the practice already installed.

Complete your check-in and reflect on which of your seven anchors felt most natural to maintain.
Write down the three anchors you will protect no matter what in Month 2.

Month 2 — Optimisation · Days 31–60

Deepen your breathing practice and track stress-response patterns with precision

Week 5Practice DepthDays 31–37

Day 31 · Aerobic Exercise Anchor 35 min

Month 2 adds aerobic exercise as a formal recovery tool. Post-exercise heart rate recovery is a studied marker of parasympathetic reactivation, and regular moderate aerobic training appears associated with improved vagal tone in the exercise physiology literature. The target is moderate intensity, not performance. If you can hold a brief conversation while moving, you are in the right zone.

Three times per week, complete at least 20 minutes of aerobic exercise at a pace where you can hold a brief conversation
Complete your first aerobic session today. After finishing, sit quietly for 3 minutes and note how long it takes for your heart rate to feel settled.

Day 32 · Extend Your Daily Session 20 min

The HRV biofeedback literature uses sessions of 10 to 20 minutes as the studied range. Today you extend toward the upper end of that range. If 15 minutes is the maximum you can sustain reliably, 15 minutes six days per week is more valuable than 20 minutes three days per week.

Today, extend your breathing session to 15 minutes at your preferred 5 to 6 breaths per minute ratio. Return to normal breathing if lightheaded.
Note any difference in depth of settling at minute 15 compared to minute 5. Note whether the session length feels sustainable.

Day 33 · Morning Session Trial 15 min

Practice timing influences practice quality. Morning sessions before cognitive load begins can produce a different quality of settling than sessions later in the day. This is not a rule but an experiment. The data from your own sessions is the only data that matters for personalising the programme.

Complete your breathing session first thing after your morning check-in and before any screen or communication.
Rate the depth of ease at the end of the session on a 1 to 5 scale and compare it to your typical mid-morning or afternoon session.

Day 34 · Coherence Ratio Experiment 20 min

The slow breathing literature includes both equal-ratio patterns and extended-exhale patterns. Both produce measurable increases in HRV. Today you compare two versions to find your preferred working ratio for Month 2. The extended exhale tends to emphasise the calming arc of each breath cycle.

In your session today, spend the first 7 minutes with a 5s in / 5s out ratio, then switch to a 4s in / 6s out ratio for the remaining 8 minutes. Return to normal breathing if lightheaded.
Note which ratio produced the clearer sense of settling. Write it down as your preferred ratio for Month 2.

Day 35 · Post-Exercise Recovery Timing 35 min

Today's aerobic session adds a measurement step: you will time your heart rate recovery after stopping. This is the same type of measure studied in the cardiovascular literature as a marker of parasympathetic reactivation. One timed data point gives you your Month 2 recovery baseline.

Complete today's aerobic session, then stop and sit quietly. Time how many minutes until your heart rate returns to a comfortable resting pace.
Log the recovery time alongside the session type and duration. You will compare this across Months 2 and 3.

Day 36 · Social Depth 10 min

This week the social engagement anchor deepens from daily contact to contact quality. Today the focus is listening depth: a genuine exchange where you ask a real question and wait for a real answer before responding. This is harder than it sounds in a typical day.

In today's connection conversation, ask one open-ended question and give the other person the full space to answer before you respond.
Notice the difference in the felt quality of this exchange compared to a transactional check-in.

Day 37 · Week 5 Reflection 10 min

Week 5 added aerobic exercise and extended your breathing sessions. Both practices use the recovery window as their common measure: how quickly your system returns to a settled baseline after effort or activation. Review which combination worked best for your schedule this week.

Complete your check-in and review your post-exercise recovery times from this week.
Note any pattern in which days your breathing session felt easier. Is there a connection to the days you exercised?

Week 6Exercise IntegrationDays 38–44

Day 38 · Evening Breathing Session 15 min

This week adds a second daily breathing session: a short evening practice before bed. This is a deliberate programme close, signalling the end of the day's demands. The research on slow breathing and sleep quality is consistent with a brief session in the hour before bed as a useful transition tool.

Each evening, 15 to 20 minutes before bed, complete a 5-minute slow breathing session using your preferred ratio
Complete tonight's evening session now. Note how you feel before it starts and 10 minutes after it ends.

Day 39 · Aerobic Variety 30 min

Variety in aerobic activity supports long-term adherence. Today you try a different route, format, or context for your session. The physiological demand is the same regardless of format. The behavioural question is: which format are you most likely to sustain past Day 90?

Try an aerobic format you have not used yet in the programme: a different route, a jog, a swim, a bike ride, or a similar activity.
Note your mood and sense of ease in the 30 minutes after the session compared to before it.

Day 40 · Midday Recovery Session 15 min

Many people experience an autonomic dip in the early afternoon. A brief breathing session at midday can serve as a reset between morning demands and the afternoon period. Today you test this as a deliberate intervention in the structure of your day.

At midday today, complete a 5-minute breathing session before returning to afternoon tasks. Return to normal breathing if lightheaded.
Rate your focus and ease for the hour after the session compared to a typical afternoon where you skip the midday practice.

Day 41 · Voice-Tone Awareness 10 min

The polyvagal framework includes the idea that prosodic features of voice, including pace, rhythm, and tone, are regulated by the same autonomic circuits that govern social engagement. Your voice in conversation is an observable output of your current state. Today you map the contrast between activated and settled.

During a conversation today under mild time pressure or demand, notice the pace, volume, and tone of your own voice.
In a second conversation under no pressure, notice the same features. Write two sentences about what the contrast shows you.

Day 42 · Walk After the Evening Meal 20 min

A brief walk after the evening meal is a low-intensity recovery practice with a long history of use across health contexts. The pace should be comfortable and conversational, not training intensity. Today you add this as a one-off test before deciding whether it fits your evening routine.

Take a 10-minute walk within 30 minutes of your evening meal at an easy, comfortable pace.
Note your sense of ease and your readiness for your evening breathing session after the walk.

Day 43 · Gratitude and Connection 10 min

Some research on social connection and vagal tone focuses on perceived connection quality rather than contact frequency alone. Today you add a brief reflection to your evening routine: 2 minutes on one thing you value in one relationship. This is a data point about whether shifting your focus before the evening session changes the quality of the practice.

Before your evening breathing session, spend 2 minutes writing one thing about a specific relationship that you genuinely value.
Complete your evening session and note whether the reflection shifted the quality of the practice in any way.

Day 44 · Week 6 Reflection 10 min

Week 6 added the evening session, midday recovery practice, and the post-meal walk. Your habit stack now includes two breathing sessions per day with the physiological sigh and post-stress recovery breathing available between them. Review whether the aerobic exercise target of three sessions per week was met.

Complete your check-in.
Review your aerobic exercise log for Weeks 5 and 6: did you reach three sessions per week? If not, note the primary obstacle.

Week 7Stress PatternsDays 45–51

Day 45 · The Stress Diary 10 min

This week you track stress patterns more precisely. Today you keep a brief stress log: every activation event, its estimated intensity, its duration, and your recovery time. This is data collection, not performance. Your goal is a clearer map of your personal stress-response landscape.

Keep a brief stress log today: for each activation event, note the trigger, rate intensity 1 to 5, and note how long until you felt settled.
Review the log at the end of the day. What pattern do you see in trigger type, intensity, and recovery speed?

Day 46 · Breathing at the Trigger 10 min

The physiological sigh is a real-time tool for acute moments. Today you practice deploying it earlier in the activation sequence, at the trigger rather than the peak. Early deployment is a skill that takes repetition to build because the habit of reacting is well-established and the habit of pausing must be built on top of it.

Today, when you notice a stress trigger approaching (a difficult notification, a tense meeting, a deadline), deploy two physiological sighs before reacting.
Note whether the early deployment changed anything about the activation intensity or the recovery time compared to your typical response.

Day 47 · Your Recovery Toolkit 10 min

By this point you have four active recovery tools in regular rotation: slow breathing sessions, the physiological sigh, post-stress recovery breathing, and aerobic exercise. Today you rank them by how reliably each one works for your particular stress patterns.

List your four active recovery tools and rank them from most to least reliable for the type of activation you typically encounter.
Write one sentence about why your top-ranked tool works better than the others for your situation.

Day 48 · Replace One Scroll with One Session 10 min

Passive screen use after stress is a common recovery substitute that does not appear to function as a parasympathetic activator in the way movement or slow breathing practice does. Today you swap one instance of post-stress scrolling for a 3-minute breathing recovery.

Today, replace one instance of reaching for your phone after a stressor with a 3-minute slow breathing recovery instead.
Note the difference in how settled you feel 10 minutes later compared to a typical phone-based recovery.

Day 49 · Widen Your Social Circle 10 min

The connection anchor has been operating within your immediate network. Today you extend it slightly: a brief, genuine contact with someone outside your usual rotation. The quality of the contact matters more than its length, and a slightly unfamiliar contact gives you a different data point about your social engagement response.

Reach out today to someone you have not spoken to in at least two weeks for a brief phone call or in-person conversation.
After the conversation, note whether the type of connection (familiar versus slightly unfamiliar) changes your felt response.

Day 50 · Midpoint Review 15 min

Day 50 is the midpoint. Today you take a broader look at the arc from Day 1 to now. You are not assessing outcomes. You are assessing practice. The programme measures completion of the habits you have built, not health endpoints.

Review Days 1 to 50. How many breathing sessions per week have you averaged?
Write a 3-sentence description of how your stress recovery feels compared to Day 1. Be specific about what you observe in your own behaviour, not how you think you should feel.

Day 51 · Week 7 Reflection 10 min

Week 7 focused on precision: stress diaries, toolkit ranking, and deliberate trigger-level breathing deployment. The observational work of this week prepares you for the combined practice and integration weeks ahead. Review which new skill you want to sharpen going into Week 8.

Complete your check-in.
Write one specific behaviour you want to sharpen in the Combined Practice week ahead.

Week 8Combined PracticeDays 52–60

Day 52 · Full Practice Day 30 min

This week you deliberately combine practices within single days to test how they interact. Today is the first full-stack day: morning check-in, morning breathing session, post-meal pause, at least one physiological sigh deployment, a connection conversation, and an evening breathing session.

Complete all daily anchors today in sequence: morning check-in, morning breathing session, post-meal pause, physiological sigh when needed, connection conversation, evening breathing session.
Rate the day's overall ease at bedtime on a 1 to 5 scale. Compare to a day where you complete only one or two practices.

Day 53 · Low-Stimulation Morning 15 min

The quality of the first 30 minutes after waking influences the tone of your autonomic state through the morning. Today you protect that window from screen input and lead with your check-in and breathing session before any external demand arrives.

Delay checking any screen for the first 20 minutes after waking. Use the time for your morning check-in and breathing session.
Note the quality of your focus and reactivity in the first hour compared to a screen-first morning.

Day 54 · Longer Aerobic Session 45 min

Today you extend your aerobic session to 30 minutes and add a timed recovery measurement after stopping. This is a Month 2 data point that you will compare with your Month 3 observation. No target, no benchmark. Just your own baseline moving through time.

Complete a 30-minute aerobic session at a comfortable conversational pace.
After stopping, sit quietly and time your heart rate recovery window. Compare to your Week 5 baseline.

Day 55 · Breathing Outdoors 15 min

Environmental context can shift the quality of a breathing practice. Today you test your session outdoors: a park, garden, courtyard, or open window. Some people find the natural environment deepens the settling quality of the session. Others find it distracting. The data point is yours.

Complete your daily breathing session outdoors in any natural or open-air setting. Return to normal breathing if lightheaded.
Compare the depth of ease to your indoor session from earlier this week and note any difference.

Day 56 · Social Pattern Review 10 min

Your daily connection anchor has been running for over a month. Today you review the pattern: which contacts consistently produce a settled feeling, and which do not? This is not a judgement about relationships. It is data about which interactions belong in your recovery toolkit.

Reflect on the connection conversations over the past two weeks. Which specific interactions left you feeling most settled, and what do they have in common?
Write down two relationships you want to invest in more deliberately in Month 3.

Day 57 · Progressive Relaxation Before Breathing 20 min

Muscular tension from the day accumulates in predictable places: jaw, shoulders, hands. Starting your evening breathing session with a brief tension-and-release scan addresses this directly and can deepen the quality of what follows. Today you test the combined sequence.

Before your evening breathing session, spend 3 minutes releasing tension from your feet upward to your jaw and scalp.
Note whether the preparation changes the depth or ease of the breathing session that follows.

Day 58 · Stress Response Comparison 10 min

Today you compare your stress diary observations from Week 7 with this week. You are looking for any directional signal in how long activation events are lasting and how reliably your recovery tools are working. Pattern recognition across two weeks is more reliable than single-session impressions.

Compare your Week 7 stress log to this week. Has the average recovery window shortened on any category of trigger?
Note any days where recovery was notably faster and write what you had done in the preceding hours.

Day 59 · Rest Day 10 min

Intentional rest is a recovery strategy, not a gap in the programme. Today you protect low-stimulation time and allow aerobic practice a day off. Your breathing sessions continue. The distinction between active recovery (breathing, movement) and passive rest (low demand, low stimulation) is worth understanding from direct experience.

Take today as a rest from aerobic exercise. Keep your breathing sessions but reduce demands and stimulation elsewhere in the day.
Note the difference in your body's felt sense at the end of a rest day compared to a typical exercise day.

Day 60 · Month 2 Complete 10 min

Month 2 complete. Sixty days in. You have deepened your breathing practice to two daily sessions, added aerobic exercise three times per week, and built the capacity to track your stress patterns with some precision. Month 3 integrates what you have built into a permanent system.

Complete your check-in and review Month 2 in full.
List the five habits that feel closest to automatic at this point in the programme.

Month 3 — Mastery · Days 61–90

Integrate your complete autonomic toolkit into a durable, self-sustaining daily system

Week 9Integration SprintDays 61–67

Day 61 · Daily Log Review 15 min

Month 3 begins with a new metacognitive anchor: a brief morning review of yesterday's data. This is not analysis. It is 2 minutes of pattern recognition across three dimensions: practice, recovery, and connection. By the end of Month 3 you want this review running automatically alongside your other morning anchors.

Each morning, spend 2 minutes reviewing how yesterday felt across three dimensions: breathing practice completed, recovery ease after any stressor, and quality of connection
Today, complete your first log review using the last 7 days of check-in data as the reference.

Day 62 · Breathing Under Pressure 15 min

The breathing practice you have built in scheduled sessions is most useful when it transfers to unscheduled, high-demand contexts. Today you deliberately breathe slowly during a challenging task rather than waiting until after it. This is the hardest context, which makes it the most useful one to practice in.

During one demanding task or meeting today, breathe at a slow nasal rate throughout rather than holding or quickening your breath.
Note any change in the quality of your thinking or reactivity during and after the task compared to your default approach.

Day 63 · Social Integration 10 min

The daily connection habit has been a single scheduled anchor: one conversation per day. This week you extend the intention to all conversations: genuine quality of attention as a general state rather than a timetabled behaviour. This is a harder target than the daily minimum.

Bring genuine quality of attention to every conversation today, not only your daily connection anchor. Phone down, no multitasking.
At the end of the day, note whether the general shift in attention quality changed any interaction in a way you did not expect.

Day 64 · Body Scan Before Practice 15 min

Integrating a 5-minute body scan before your morning breathing session combines two practices that address different levels of activation. The scan releases surface tension; the breathing session works at the level of the autonomic rhythm. Today you test the combined morning sequence.

Before your morning breathing session, complete a 5-minute body scan from feet to scalp, releasing any tension you notice in each area.
Note whether releasing physical tension before the session changes its depth or ease.

Day 65 · Exercise Programme Review 10 min

This is a useful point to review your aerobic exercise pattern across Month 2 and the opening of Month 3. Three sessions per week is the target. If you have been consistently below that, the adjustment needed is format or scheduling, not effort or intention.

Review your aerobic exercise log for Days 31 to 65. What was your average session count per week?
If you averaged below three sessions per week, identify the single most common obstacle and write one specific change to address it for the final 25 days.

Day 66 · Polyvagal States in Practice 10 min

The polyvagal framework describes a ventral vagal state characterised by a sense of safety, social engagement, and curiosity. Whether or not the specific neuroanatomy holds under further scrutiny, the experiential markers are worth mapping from your own data. Today you identify when those conditions have arisen.

List three situations in the past month where you felt genuinely safe, curious, or playful. Write what conditions made each state possible.
Compare those conditions to the situations from your Week 1 activation map. Note what has changed.

Day 67 · Week 9 Reflection 10 min

Week 9 ran the full integration sprint: full-stack days, morning log reviews, and breathing under pressure. The daily log review is the final new anchor in the programme. Your habit stack is complete. The remaining three weeks refine and personalise what you have built.

Complete your check-in.
Write one adjustment to your daily habit stack for the final four weeks based on what you observed this week.

Week 10PersonalisationDays 68–74

Day 68 · Your Personal Protocol 15 min

The programme gave you a general sequence across 67 days. Your schedule, your stress patterns, and your physiology are specific to you. Today you write your personalised version: the same habits in the order and at the times that work best for your life.

Write out your complete daily habit sequence: which habits you do at which times, and any order dependencies you have discovered.
Compare this to the programme's general sequence. Note where your version differs and why those changes fit your situation.

Day 69 · Breathing Ratio Personalisation 15 min

You have tested several breathing ratios across two months of practice. Today you commit to your preferred one for the remainder of the programme. Consistency of approach deepens the practice at this stage. Experimentation now has diminishing returns.

Identify your preferred breathing ratio from across the programme based on your own notes. Write it on a card or phone note as your committed working ratio.
Complete today's session using only that ratio and note the depth of settling.

Day 70 · Social Format Personalisation 10 min

The daily connection anchor works differently for different people depending on format. In-person contact, phone calls, and video calls each produce a distinct set of relational cues. Today you identify which format leaves you most settled and plan to prioritise it for the rest of Month 3.

Identify the connection format (in-person, phone, or video) that consistently produces the most settled feeling after contact.
Plan two intentional connections in that format this week.

Day 71 · Exercise Format Personalisation 10 min

The aerobic exercise anchor needs to survive past Day 90 to deliver its long-term value. The format most likely to persist is the one that requires the least activation energy to start. Today you identify and commit to your post-programme exercise format.

Identify the aerobic exercise format you are most likely to sustain beyond the programme based on 40 days of direct experience.
Schedule three sessions of that format in your calendar for the coming week.

Day 72 · Stress Response Review 10 min

Today you make a direct comparison: a stressful situation from Week 1 and a comparable one from this week. You are not rating outcomes. You are observing your own behaviour and recovery pattern across two situations separated by 10 weeks of practice.

Recall a stressful situation from Week 1 and a similar one from the past week. Write how your response to each was different, if at all.
Write two sentences describing what you observe about your stress reactivity pattern compared to Day 1. Be specific and observational rather than evaluative.

Day 73 · Your Permanent Recovery Stack 10 min

You have been using four to six recovery tools in rotation for months. Today you rank them and identify your permanent first-response stack. This is the personal toolkit you will keep past Day 90, not as a programme obligation but as a practice that belongs to you.

From the full set of recovery tools you have used, list your top three in order of reliability for your personal stress patterns.
Write one sentence about why each of the top three works for you specifically.

Day 74 · Week 10 Reflection 10 min

Week 10 personalised the programme across all five domains: breathing, exercise, connection, log review, and recovery toolkit. You now have a version of this programme that is yours rather than generic. The final two weeks embed it as a permanent system.

Complete your check-in and review Month 3 so far.
Write one thing you would teach someone else about your personal experience of the programme.

Week 11Lifestyle EmbeddingDays 75–81

Day 75 · Morning Ritual Lock 20 min

This week focuses on embedding: making your habits more automatic by fixing their position in your day. Today you lock the morning ritual sequence so that it runs before any external demand begins. Before email, before news, before anything else.

From today, complete your morning check-in, log review, and breathing session before checking any screens. Write the morning sequence in the exact order you will follow.
If the sequence takes longer than 15 minutes, identify the one step you would remove to protect the rest.

Day 76 · Connection Without an Agenda 10 min

The quality of connection changes when there is no goal attached to it. Today your connection conversation has no topic aim: no catching up, no planning, no update. Just genuine presence and attention. This is the highest-difficulty version of the anchor because it requires comfort with open-ended time.

Have today's connection conversation with no prepared topic and no agenda. Listen and respond without steering toward any goal.
After the conversation, note how this differed from your typical structured exchange and how your body felt after it.

Day 77 · Daily Movement 20 min

Low-intensity daily movement complements the structured aerobic sessions without replacing them. A brief walk layered on top of your exercise days keeps baseline activity consistent and supports the recovery patterns you have been building across the programme.

Today, add a brief 10-minute walk at any easy pace even if you have already completed an aerobic session.
Note whether the combination of structured exercise and low-intensity daily movement produces a different end-of-day feeling compared to exercise alone.

Day 78 · Evening Routine Anchor 20 min

The evening sequence has been building over two months. Tonight you run the complete version: a brief walk, a screen-free transition period, and your evening breathing session. This is the sequence you are aiming to run automatically beyond Day 90.

Tonight, complete the full evening sequence: a brief walk, a screen-free period of at least 10 minutes, then your evening breathing session. Return to normal breathing if lightheaded.
Note how the full sequence prepares you for sleep compared to an unstructured evening.

Day 79 · Stress Calibration 10 min

With 11 days left, today you calibrate your stress reactivity against your Week 1 baseline. You are not looking for a dramatic result. You are looking for any reliable signal in your own behaviour: faster recovery, earlier awareness of activation, or more consistent use of recovery tools.

Rate your average stress reactivity this week compared to Week 1 on your personal 1 to 5 scale.
Write down which specific practices contributed most to any shift you notice.

Day 80 · Relationship Quality Check 10 min

Your connection log now spans more than eight weeks. Today you review which relationships have been most consistently associated with a settled feeling after contact. These are the relationships worth deliberate investment beyond the programme.

Review your connection log from the past month. Which two or three relationships consistently leave you feeling most settled and at ease?
Plan one intentional interaction with each of those people in the final 10 days of the programme.

Day 81 · Week 11 Reflection 10 min

Week 11 embedded the full daily system: morning ritual, daily movement, and the complete evening sequence. The programme is now a functioning daily system, not a set of tasks to complete. The final week closes it out.

Complete your check-in.
Write down your three favourite discoveries from this programme. Keep the list where you can return to it after Day 90.

Week 12CompletionDays 82–90

Day 82 · Final Breathing Benchmark 20 min

Today you run a 15-minute breathing session and notice how it compares to your Day 3 practice. The technique has not changed. Your familiarity with it has. Eighty-two days of repetition has a measurable effect on how settled a practice feels, even when the structure is identical.

Complete a 15-minute slow breathing session using your committed ratio. Return to normal breathing if lightheaded.
Compare the depth of ease to your first session on Day 3. Write two sentences about what is different.

Day 83 · Exercise Commitment Forward 10 min

The aerobic exercise anchor was introduced on Day 31. Its value for recovery capacity is cumulative, not confined to the 90-day window. Today you write a specific post-programme plan for maintaining it.

Write a specific plan for maintaining at least two aerobic sessions per week after Day 90: the type, the day of the week, and the duration.
Share this plan with someone from your connection network or put it somewhere you will see it each week.

Day 84 · Connection Intention 10 min

The daily connection anchor was introduced on Day 22. Whether you maintain the daily minimum beyond the programme or relax it to a weekly target, the underlying principle stays the same: genuine contact with people who leave you settled is a behaviour worth protecting.

Write a brief commitment to your social engagement practice beyond Day 90. Be specific: how often, in which format, and with which people.
Identify two relationships you want to invest in more deliberately in the month after the programme ends.

Day 85 · Habit Stack Review 15 min

Ten habits were introduced across 90 days, each building on the ones before. Today you review the full stack and assess which have become automatic and which still require deliberate effort. The automatic ones are permanent. The ones still requiring effort need the smallest possible daily step to sustain them.

List all ten habits introduced in the programme and mark each as automatic, deliberate but consistent, or inconsistent.
For any habit marked inconsistent, write the smallest daily step that would make it easier to execute tomorrow.

Day 86 · Stress Response Letter 15 min

The polyvagal framework centres on the story your nervous system tells about safety and threat. Your story has been running through this programme without being narrated. Today you narrate it: three sentences to yourself from Day 1 about what you now understand about your stress response.

Write three sentences to your Day-1 self about what you now know about your stress response, your recovery patterns, and what works for you.
Read the sentences aloud. Note what it feels like to have a language for patterns that were previously implicit.

Day 87 · Rest and Quiet Morning 20 min

Four days from the finish. Today you protect a slow, quiet morning: no news, no social media, and no email for the first hour after waking. Use the time for your morning sequence. This is a reminder that this structure is available to you on any morning beyond Day 90.

Protect the first hour after waking from any external input. Complete your morning check-in, log review, body scan, and breathing session before any screen.
Note how the quality of the morning compares to a typical screen-first morning.

Day 88 · Full Practice Day — Final Run 30 min

Today you run your personal protocol from beginning to end: every anchor in your daily habit stack in your personalised order and timing. This is not a performance. It is a demonstration to yourself of how far the system has come from the single morning check-in on Day 1.

Complete your full daily habit stack today using your personalised sequence from Day 68.
Rate the ease of the full day on a 1 to 5 scale and compare it to the first full-stack day on Day 52.

Day 89 · Final Check-In Preparation 15 min

Tomorrow is Day 90. Today you prepare for your final check-in by reviewing your key patterns across the programme. You are looking for three insights to carry forward: one about your breathing practice, one about your recovery patterns, and one about the role of connection in your daily sense of ease.

Review your check-in data from the whole programme. What three patterns stand out most clearly?
Write your three key insights, one per domain: breathing, recovery, and connection.

Day 90 · Programme Complete 15 min

Ninety days. You arrived with a set of observations about your stress response and a willingness to build a practice. You leave with ten daily anchors, a personalised recovery toolkit, and a working understanding of the evidence frameworks underneath the programme. The practices belong to you now.

Complete your final check-in.
Read back your Day 1 stress response notes and your Day 86 letter.
Write one sentence committing to your autonomic health practice beyond the programme.

The evidence

The frameworks this programme is built on — each anchored to peer-reviewed research, cited with its DOI and verified against the Crossref registry at build time. Where the evidence has honest limits, the framework says so.

Cardiac Vagal Tone and HRV

Laborde et al. · Frontiers in Psychology · 2017

Heart rate variability as a window on cardiac vagal tone and autonomic regulation, covering measurement approaches, experimental planning, and the interpretive limits of HRV as a psychophysiological marker. HRV is used in this programme as an awareness indicator, not a score to maximise.

DOI: 10.3389/fpsyg.2017.00213

Thayer et al., 2012 — Meta-analysis linking HRV and neuroimaging to stress regulation and health doi:10.1016/j.neubiorev.2011.11.009

Slow-Paced Breathing and HRV Biofeedback

Lehrer & Gevirtz · Frontiers in Psychology · 2014

How and why slow-paced breathing at approximately 6 breaths per minute resonates with cardiac rhythms to produce elevated heart rate variability. This review covers the baroreflex and resonance-frequency mechanisms underlying HRV biofeedback practice, and the evidence for regular practice as the key variable.

DOI: 10.3389/fpsyg.2014.00756

Zaccaro et al., 2018 — Systematic review of psychophysiological correlates of slow breathing doi:10.3389/fnhum.2018.00353
Bernardi et al., 2001 — Rosary and mantra practice at 6 cycles per minute and cardiovascular rhythms doi:10.1136/bmj.323.7327.1446

Polyvagal Theory

Porges · Biological Psychology · 2007

A theoretical framework proposing three hierarchical circuits of autonomic regulation: ventral vagal supporting social engagement, sympathetic supporting mobilisation, and dorsal vagal supporting shutdown. Framed here as a theoretical perspective with noted scientific debate; programme practices are grounded in the more directly tested HRV and respiratory-sinus-arrhythmia literature rather than in specific polyvagal claims.

DOI: 10.1016/j.biopsycho.2006.06.009

Exercise and Vagal Reactivation

Cole et al. · New England Journal of Medicine · 1999

Heart rate recovery after exercise as a marker of parasympathetic reactivation and cardiovascular health. The rate at which the heart slows after stopping exercise reflects vagal reengagement, making post-exercise recovery a practical window on autonomic function accessible without specialist equipment.

DOI: 10.1056/NEJM199910283411804

Buchheit, 2014 — Heart rate measures for monitoring training and recovery status doi:10.3389/fphys.2014.00073

Social Connection and Health

Holt-Lunstad et al. · PLoS Medicine · 2010

Meta-analytic evidence that social relationships are associated with mortality risk at the population level, establishing social engagement as a behaviour with documented health relevance. Research also suggests perceived connection is associated with cardiac vagal tone at the individual level.

DOI: 10.1371/journal.pmed.1000316

Kok et al., 2013 — Perceived positive social connections and upward spiral with vagal tone and positive emotions doi:10.1177/0956797612470827

Safety & fit

This 90-day protocol is a structured, educational programme in autonomic balance practices informed by published science. It is not medical advice and is not a substitute for professional care. Consult a physician before starting if you have a heart condition, cardiac arrhythmia, any respiratory condition including asthma, a history of panic disorder or anxiety disorder, or are pregnant. Breathing practices in this programme carry a risk of lightheadedness: return to normal breathing if you feel dizzy at any point. Every framework it draws on is referenced to peer-reviewed literature for educational context only.

Who should check first

['Cardiac arrhythmia or any heart condition', 'Respiratory conditions including asthma (for breath-hold or extended breathwork)', 'Pregnancy', 'History of panic disorder or anxiety disorder (for intensive breathwork)', 'Any condition under active medical management']

Questions, answered

How much time does this take?

The Vagus Nerve Protocol runs 90 days across 12 themed weeks. Each day asks for between 10 and 60 minutes of deliberate practice — the daily tasks are listed in the programme map on this page, so you can read the whole arc before you start.

How does the programme adapt to my week?

A weekly check-in reads the week you actually logged — not the week the plan assumed. Depending on the week you actually had, it lands on one of 5 adjustments: Consolidation week; Build your practice base; Support your recovery rate; Strong practice week; On track. Milestone reviews at day 30, day 60, day 90 read your whole record so far.

Where is my progress stored?

Entirely in this browser. Your daily log, notes, and check-ins live in local storage on this device — no account, no server, and nothing you type is transmitted. You can export your full log as a CSV file or delete everything, at any time, from the My log tab.

Is this medical advice?

No. This is a structured, educational programme built on peer-reviewed research — it is not medical advice, therapy, or a substitute for professional guidance. The full disclaimer, and every framework the programme draws on with its DOI, is on this page.

What happens if I miss days?

The programme is built to absorb real weeks. The weekly check-in works from whatever you logged: a thin week adjusts the plan rather than failing you, and no adjustment ever deletes your record. The adaptation rules above describe exactly how each kind of week is handled.

Where does the evidence come from?

Every phase of the programme is grounded in 5 evidence frameworks — 10 peer-reviewed references in total, each cited with its DOI in the evidence section on this page and verified against the Crossref registry at build time. Where the evidence has honest limits, the framework says so.

Go deeper

Hand-picked companions to this programme from across the estate — the baseline tool, the research deep dives, and the terms worth two minutes each.

assessment The Vagus Nerve Assessment A baseline reading before day 1 — retake it after the programme and compare.
deep-dive Cold Plunge & Cold Water Therapy The evidence behind the ice-bath claims, graded honestly.
glossary Vagus Nerve The body's information superhighway, defined against the research.
glossary Vagal Tone What it measures and why it tracks stress recovery.

Programme record

A living programme keeps a public record. Any future change to the daily tasks, the check-in rules, or their thresholds bumps the version and lands here.

v1.0 · July 2026Initial published programme: 90 daily practices across three phases, weekly adaptive check-ins, and milestone reviews at days 30, 60 and 90.