H HiPerformance CultureThe Evidence
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The Evidence

Does imagining the worst case reduce anxiety, or is premeditatio malorum just rebranded rumination?

The Stoics called it premeditatio malorum: a daily confrontation with exile, poverty, and death. Modern psychology has tested the mechanism and found something surprising. The structure matters more than the practice itself. Without contrast and closure, negative visualisation slides into something clinically harmful.

Updated Published 19 Jun 2026 · Last reviewed 19 Jun 2026 · 5 sources
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Trend Science
Breakdown
Evidence-graded series
02What's being claimed

The Stoics argued that vividly imagining catastrophe, exile, poverty, and death freed you from the grip of those fears. Premeditatio malorum, the 'premeditation of evils,' is a 2,000-year-old technology of psychological resilience. Modern readers find in it an ancient blueprint for converting anxiety into preparation before it becomes paralysis.

Ryan Holiday's Stoic trilogy, and particularly The Obstacle Is the Way (2014), reintroduced premeditatio malorum to a productivity-hungry readership that had little appetite for Marcus Aurelius in the original. Holiday presented the practice as fear-setting: a structured confrontation with worst-case scenarios that converted free-floating dread into a workable inventory of risks. The mechanism he described, confront the fear, examine it, prepare for it, was recognisable to psychologists as mental contrasting, a technique Gabriele Oettingen had spent two decades studying empirically. The bridge from philosophy to laboratory made the trend defensible: here was a productivity habit with ancient credentials and modern data.

The psychological premise is genuine. Defensive pessimism, the strategy of mentally rehearsing negative outcomes before attempting challenging goals, has been studied since the mid-1980s 2. For people who run anxious rather than optimistic, it reliably converts anxiety into effortful preparation. More recently, the mental contrasting framework confirmed that the contrast step, setting the imagined negative against a credible positive present, is what drives the anxiety-reduction effect 1. The Stoic structure turned out to match the empirical mechanism almost exactly.

Origin
Ancient Stoicism
Seneca and Marcus Aurelius practised premeditatio malorum as a daily morning contemplative discipline.
→
Vector
Ferriss and Holiday
Ferriss's fear-setting blog and Holiday's The Obstacle Is the Way translated the practice into modern productivity language.
→
Spike
Stoic social media
Instagram and TikTok stoic morning routine content drove tens of millions of views from 2020 onwards.
"Imagining the worst every morning sounds counterintuitive, but the Stoics were onto something science now confirms. Once you have mentally faced the fear clearly, the actual event has less power over you. That is the whole point of the practice."
— Representative of the claim as it circulates in Stoic productivity communities online
03The evidence verdict
H
HiPerformance Culture The Evidence · Trend Breakdown
Verdict

Structured negative visualisation reduces anxiety; unguided worst-case dwelling worsens it. The structure is everything.

Hype Evidence
This trend lands here
Low Moderate High
Moderate confidence 5 sources cited · 2 experimental studies, 1 review article, 1 longitudinal study, 1 systematic review · 1986-2019
✓

What holds up

✓
Mentally contrasting a feared outcome against a stable present reality significantly reduces state anxiety versus imagining only the negative future. 1
Gold
✓
For anxious people, simulating negative outcomes before tasks (defensive pessimism) outperforms forced positive thinking. 23
Gold
✓
Mental contrasting produces small-to-moderate health improvements (g = 0.28 at 4 weeks, g = 0.38 at 3 months), with the effect growing stronger over time. 5
Silver
✕

What doesn't

✕
Unguided worst-case dwelling worsens anxiety and depression; it is a transdiagnostic risk factor, not a therapeutic variation of the practice. 4
Safety-critical Gold
✕
No controlled trial has tested the Stoic protocol on anxious populations; all evidence comes from related constructs, not premeditatio malorum itself. 15
Silver
✕
Mental contrasting fails when the person has no credible sense that things can improve; the technique presupposes a stable positive present to contrast against. 5
Bronze
04The studies
Scored on Design quality Measurement precision Causal clarity Replication value
Gold
p < .001 state anxiety reduced vs negative-future-only condition
Controlled experiment · N=405 (2 studies)
Brodersen & Oettingen Frontiers in Psychology · 2017
Participants who mentally contrasted a feared negative future against a positive present reality showed significantly lower state anxiety than those who imagined only the negative future or who contrasted in reverse order. The anxiety-reducing effect required the juxtaposition: imagining the negative alone increased anxiety.
doi:10.3389/fpsyg.2017.01596 Verify ↗
Gold Experimental study
Norem & Cantor Journal of Personality and Social Psychology · 1986
Anxious students who mentally rehearsed negative outcomes before goal-relevant tasks performed as well as optimists and significantly better than anxious students who were prompted to think positively. Structured anticipation of failure converted anxiety into effort rather than paralysis.
doi:10.1037/0022-3514.51.6.1208 Verify ↗
Gold Review article
Norem Social and Personality Psychology Compass · 2008
Defensive pessimists prevented from running mental simulations of negative outcomes perform worse, not better, across three decades of findings. Forcing optimism on anxious individuals disrupts their natural self-regulatory mechanism. The review identifies anxiety-channelling (not anxiety-elimination) as the operative mechanism.
doi:10.1111/j.1751-9004.2007.00053.x Verify ↗
Gold
Full mediation rumination explains depression-anxiety comorbidity
Longitudinal study · n=2,382 (adolescents + adults, 2 cohorts)
McLaughlin & Nolen-Hoeksema Behaviour Research and Therapy · 2011
Unstructured, repetitive negative thinking (rumination) fully mediated the concurrent link between depression and anxiety, and prospectively predicted worsening in both. This is the critical limiting evidence: negative visualisation without structure, contrast, and closure becomes rumination, and rumination causes harm.
doi:10.1016/j.brat.2010.12.006 Verify ↗
Silver
g = 0.38 effect size on health outcomes at 3 months
Systematic review and meta-analysis · N=1,528
Cross & Sheffield Health Psychology Review · 2019
Mental contrasting produced significant improvements in health-related outcomes across 1,528 participants, with a small-to-moderate effect size (g=0.28 at 4 weeks, g=0.38 at 3 months). The strengthening over time suggests habit formation, meaning the technique compounds rather than plateaus.
doi:10.1080/17437199.2019.1594332 Verify ↗
05So what do you actually do

If you use it, the evidence supports a structured three-step version, not open-ended worst-case dwelling.

For those with clinical depression or generalised anxiety, supervised guidance is advisable before starting.

01Vividly imagine the specific feared outcome for no more than five minutes; be concrete, not catastrophising.
02Immediately contrast it against what is stable and positive in your current situation; this contrast is not optional.
03Close the loop by identifying one concrete action you can take today in response to the imagined outcome.
04If the session leaves you more anxious than when you started, stop; you are ruminating, not practising mental contrasting.
06The verdict triad
Claim

Imagining Failure Sharpens Focus

When you vividly simulate a feared outcome, the anxiety of uncertainty converts into something more manageable: preparation. The mind stops rehearsing vague catastrophe and begins problem-solving instead. This is the mechanism the Stoics built their morning practice around, and the one Norem's four decades of research on defensive pessimism consistently confirm.

Consequence

Structure Separates Therapy from Harm

Remove the contrast or the closure step and the practice stops being negative visualisation and becomes rumination. McLaughlin and Nolen-Hoeksema's longitudinal study of over 2,000 participants confirmed that rumination fully mediates the relationship between depression and anxiety and prospectively predicts worsening in both. The structure is not a refinement; it is what makes the technique safe.

Lever

The Full Three-Step Cycle

Run the complete cycle every time: imagine the feared outcome vividly, contrast it against what is genuinely stable in your present situation, and close the loop by naming one action. Any version that skips the contrast or leaves the loop open is not a truncated form of the practice; it is a different and potentially harmful one.

08What to do next
What to do next

Want a structured version of this practice matched to your anxiety baseline?

HPC's Cognitive Resilience Assessment identifies which form of structured mental contrasting the evidence supports for your profile. Two minutes to complete.

Take the assessment
09Share & references
Update log
19 Jun 2026First published. 5 sources reviewed.
Related
Owning guide
The HPC Stoicism Guide
The full evidence review of Stoic practices for performance and psychological resilience.
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Assessment
Cognitive Resilience Assessment
Find the right anxiety-management technique for your psychological profile.
Start assessment →
Trend Breakdown
Does Defensive Pessimism Actually Work?
The evidence on simulating failure as a performance strategy for anxious achievers.
Read the breakdown →
Bibliography · every source, resolvable
01Brodersen, G. & Oettingen, G. (2017). Mental Contrasting of a Negative Future with a Positive Reality Regulates State Anxiety. Frontiers in Psychology, 8. doi:10.3389/fpsyg.2017.01596 Verify ↗Gold
02Norem, J.K. & Cantor, N. (1986). Defensive pessimism: Harnessing anxiety as motivation.. Journal of Personality and Social Psychology, 51(6), 1208-1217. doi:10.1037/0022-3514.51.6.1208 Verify ↗Gold
03Norem, J.K. (2007). Defensive Pessimism, Anxiety, and the Complexity of Evaluating Self‐Regulation. Social and Personality Psychology Compass, 2(1), 121-134. doi:10.1111/j.1751-9004.2007.00053.x Verify ↗Gold
04McLaughlin, K.A. & Nolen-Hoeksema, S. (2011). Rumination as a transdiagnostic factor in depression and anxiety. Behaviour Research and Therapy, 49(3), 186-193. doi:10.1016/j.brat.2010.12.006 Verify ↗Gold
05Cross, A. & Sheffield, D. (2019). Mental contrasting for health behaviour change: a systematic review and meta-analysis of effects and moderator variables. Health Psychology Review, 13(2), 209-225. doi:10.1080/17437199.2019.1594332 Verify ↗Silver
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