Audit a URL →

Sign in Sign up free

Loading…

Weekly · Sunday Morning

Five longevity claims.
Worth your time.
Every Sunday.

Last Sunday

Rapamycin extends mouse lifespan 9–14%
NAD+ precursors reverse aging in humans
Blue-light glasses improve sleep quality
Walking 10 min after meals blunts glucose
Verdict change — caffeine half-life downgraded

5 audits·1 verdict change·0 affiliate links·Every Sunday

Joining 1,247 readers — founders, MDs, and longevity-obsessed people who fact-check their own health decisions.

Browse

Decisions Claims Content Creators

Product

Audit a URL Sunday roundup API (soon)Pricing

About

FAQ Methodology Editorial Standards Corrections Press & brand RSS feed

Legal

Terms of Service Privacy Policy DMCA

Finally, something serious in this space.
Because we actually read the papers.

© 2026 Whalespan. Independent, evidence-graded longevity.

How I Fixed My Terrible Posture - 5 Habits — Whalespan

Content›Video›How I Fixed My Terrible Post…

How I Fixed My Terrible Posture - 5 Habits

Bryan Johnson6m · 2023-06-07

Claims Made

18

Claims Supported

17

Support Rate

94%

Support rate

17 of 18 claims supported

17 supported1 partial / not

Claims from this content

13

◐Partially SupportedInitial soreness is expected when engaging neglected muscles for posture maintenance.◐Partially SupportedThe ability to resist unexpected attempts to move the head indicates clenching to maintain posture, and individuals should be cued to use minimal effort.◐Partially SupportedGenetically narrow internal jugular veins combined with poor posture can restrict blood flow out of the brain.◐Partially SupportedImproving posture is a highly impactful intervention within Bryan Johnson's 'blueprint' for longevity and health.Partially Supported

More from Bryan Johnson

Bryan Johnson's Blueprint Rapamycin Protocol

Discussion

Native comments, Twitter mentions, and Reddit threads about this content — surfaced together so the conversation isn't fragmented across platforms.

M

Share your read of this content…

Posting publicly as you · linked to your social profiles

Sort by:

AV

A. Volkovreader

4h

Bookmarking — the dossier-vs-overview split is the right call. Most of the time I want overview; sometimes I want receipts.

NP

N. Park

2d

Would love a "what would change this verdict" RSS feed. Sign me up if it exists.

◐

Moving every five minutes throughout the day with various stretches and movements helps reset the body and maintain posture.

◐Partially SupportedMaintaining good posture can be initiated by imagining a string pulling the spine straight up through the head.

◐Partially SupportedPerforming levator scapulae exercises with weights, pulling shoulders up and forward, is an effective technique for strengthening postural muscles.

◐Partially SupportedHolding a phone up instead of looking down at it can help maintain good posture and may allow one to feel blood flow changes in the jugular veins.

◐Partially SupportedBad posture from sitting all day and looking down at phones is detrimental to health.

◐Partially SupportedBad posture may plausibly influence the development of craniological disorders such as early dementia.

◐Partially SupportedIndividuals should consult with their doctor and practitioner regarding lifestyle changes, including posture correction, as everyone's case is individual.

◐Partially SupportedSpecific, nuanced exercises targeting small core muscles are necessary for strengthening posture-maintaining muscles.

◐Partially SupportedMaintaining proper posture can positively influence identity by projecting self-pride and confidence.