Editorial Policy
HiPerformance Culture publishes research-led writing on cognition, behaviour and performance. This page states where our claims come from, how we check them, and what we do when we get something wrong.
What we publish
The site currently holds 503 articles across ten fields: brain health and bio-performance, mental models and decision science, leadership and social dynamics, identity, habits, rapid learning, flow, the arena, nutrition, and relationship neuroscience. Alongside the articles sit a defined-terms glossary, practical protocols, and self-assessments.
How we source claims
Substantive claims cite the primary literature. We do not cite press releases, and we do not cite an article that cites a study — we cite the study.
Every source we use is registered once in a single sitewide citation registry, deduplicated by DOI, and reused by key. One paper therefore carries one record across the whole site, so a correction to that record propagates everywhere the paper appears. As of 28 July 2026 the registry holds:
- 6,991 sources in total, drawn from 1,529 distinct journals
- 6,857 journal papers, 66 books, 62 web sources, 4 preprints, 2 reports
- 6,856 keyed by DOI (98.1%)
- Publication years spanning 1763 to 2026, median 2015
How we verify them
6,785 sources — 97.1% of the registry — are machine-verified against Crossref. Verification is not a link check. A DOI that merely resolves proves nothing about whether it resolves to the paper we meant. Our checker requires the registered title to match the title Crossref returns for that DOI, so a valid DOI attached to the wrong paper fails.
The remaining 206 sources are books, web pages and reports that carry no DOI. Nothing can machine-verify them, so we check them by hand and mark them as unverified rather than implying a machine confirmed them.
We publish this number rather than claiming perfection because the honest figure is the useful one. A verification process only means something if it can fail, and ours has: in July 2026 an internal audit found live citations that resolved to the wrong papers, which is precisely why the checker now demands a title match instead of a resolving link. We repaired every affected entry and tightened the gate.
Graded claims
Not every finding deserves equal confidence. Where we make a specific empirical claim in The Ledger, we grade it by the strength of the evidence behind it and cap our stated confidence at what that evidence supports. A single small study does not get to sound like a meta-analysis. Where the literature genuinely conflicts, we say so instead of picking the tidier answer.
Corrections
We correct errors rather than quietly deleting them.
- Factual errors and misread findings. We fix the text and append a dated correction note to the article stating what was wrong and what it now says.
- Citation errors — a wrong DOI, a mismatched title, a misattributed finding. We repair the registry record, which corrects every article using that source.
- Withdrawn claims. If a claim cannot be supported, we withdraw it and mark it withdrawn on the page. We do not silently remove it.
- Retracted papers. If a cited paper is retracted, we remove the claim it supported and note the retraction.
Typographical fixes that change no meaning are made without a note.
To report an error: email contact@hiperformanceculture.com.
Tell us the page, the claim, and what you believe is correct. Where you can point to a DOI, that resolves things fastest.
Independence
No advertiser, vendor or affiliate partner has any say over our conclusions, our grading, or whether we publish something unfavourable. Commercial relationships are disclosed separately in our Affiliate Disclosure. Where a cited study was funded by a party with a stake in its outcome, we say so next to the claim.
What this site is not
We write about health, nutrition and performance. Nothing here is medical advice, diagnosis or treatment, and no article is a substitute for a qualified clinician who knows your history. See our Terms of Use.
Who is responsible
HiPerformance Culture is published and edited by Nas Khan, its founder. Editorial responsibility for everything on this site — what runs, how it is sourced, and what gets corrected — rests there. Reach us at contact@hiperformanceculture.com.