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Weekly · Sunday Morning

Five longevity claims.
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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

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How To Not Look Old — Whalespan

Content›Video›How To Not Look Old…

How To Not Look Old

Bryan Johnson5m · 2024-08-26

Claims Made

16

Claims Supported

11

Support Rate

69%

Support rate

11 of 16 claims supported

11 supported5 partial / not

Claims from this content

15

✓Well SupportedMineral-based sunscreens are a better choice if concerned about chemicals or applying frequently.✓Well SupportedBryan Johnson wakes up around 5 am and gets 10,000 lux light exposure for a few minutes.✕Not SupportedA sun tan is a sign of skin damage that accelerates aging.✓Well SupportedAvoid excessive sunlight exposure during high UV index times (9 am - 5 pm) and ensure adequate exposure at other times.✓Well SupportedBryan Johnson optionally supplements with up to 5000 IU of Vitamin D daily.

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.

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N. Park

2d

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

◐Partially SupportedSunscreen selection should be application-specific, considering factors like swimming, sweating, ocean environments, and marine friendliness.

◐Partially SupportedIndividuals who dislike sunscreen should still take measures to protect their skin from damage during periods of high UV exposure.

◐Partially SupportedThe sun is beneficial for skin health in appropriate amounts, avoiding excessive and insufficient exposure.

◐Partially SupportedTinted window films that block 99% of UVA and UVB rays can be used to protect skin from sun damage.

◐Partially SupportedTitanium dioxide may pass the blood-brain barrier and accumulate in the brain.

◐Partially SupportedWhen the UV index is above three, use protection measures like hats, sunscreen, or UV umbrellas to avoid excessive sun exposure on unprotected skin.

✓Well SupportedModerate sunlight exposure can entrain circadian rhythm, produce vitamin D, correlate with longevity, and improve mood.

◐Partially SupportedLight exposure before sunrise benefits circadian rhythm and mood.

✕Not SupportedExcessive sun exposure can damage collagen and elastin, leading to sagging skin and wrinkles, and can also cause cancer.

◐Partially SupportedWearing gloves while driving can protect hands from sun exposure, which is a common area for age-related skin damage.