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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

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Reacting To My Netflix Documentary — Whalespan

Content›Video›Reacting To My Netflix Docum…

Reacting To My Netflix Documentary

Bryan Johnson32m · 2025-02-08

Claims Made

48

Claims Supported

24

Support Rate

50%

Support rate

24 of 48 claims supported

24 supported24 partial / not

Claims from this content

12

✓Well SupportedBryan Johnson's protocol is at an elite level for biomarkers including testosterone, bone mineral density, and speed of aging.✓Well SupportedBryan Johnson limits sun exposure to early mornings or evenings when UV index is low, and stays out of the sun otherwise, using sunscreen when exposed.✓Well SupportedCentral pulse pressure and wave measurements can show improvements in vascular function, including enhanced compliance and blood flow.✓Well SupportedBryan Johnson's 4x4 high-intensity training protocol involves 4 minutes of maximal exertion followed by 4 minutes of rest, repeated four times.Well Supported

More from Bryan Johnson

Bryan Johnson's Blueprint Rapamycin Protocol

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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.

✓

Eating unhealthy food around 7 PM led to poor sleep, weight gain, cognitive cloudiness, and irritability.

◐Partially SupportedThe social norm in entrepreneurship historically associated going days without sleep with admiration.

◐Partially SupportedTaking hundreds of different interventions makes it very difficult to identify which, if any, are working.

✕Not SupportedCalling someone an 'anti-aging fanatic' is a cultural awareness issue, and basic life practices like sleeping on time, eating vegetables, and exercising should not be labeled as fanaticism.

◐Partially SupportedA clinical trial with thousands of participants is necessary to identify which interventions are working, at what dose.

◐Partially SupportedWhen not well-rested, all life challenges feel significantly heavier.

✕Not SupportedGoing days without sleep as an entrepreneur is now viewed as foolish and was indicative of lack of sleep, chaos, depression, relationship challenges, and religious turmoil.

◐Partially SupportedPersonal experience, such as correcting a Vitamin D deficiency and feeling better, demonstrates that interventions can work.