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Weekly · Sunday Morning

Five longevity claims.
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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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I reduced microplastics in my sperm by 85% — Whalespan

Content›Video›I reduced microplastics in m…

I reduced microplastics in my sperm by 85%

Bryan Johnson1m · 2025-12-10

Claims Made

4

Claims Supported

4

Support Rate

100%

Support rate

4 of 4 claims supported

4 supported0 partial / not

Claims from this content

4

✓Well SupportedBryan Johnson has implemented tools to reduce toxin exposure and aid in toxin clearance, resulting in near-perfect serum PFAS levels and a 93% reduction in microplastics.✓Well SupportedSauna use at 200°F for 20 minutes daily, while wearing 100% cotton clothing and applying ice to the testicles, can eliminate 85% of microplastics from sperm.✓Well SupportedMicroplastics can cause oxidative stress, testicular inflammation, cell death, and lower testosterone and sperm count.◐Partially SupportedMicroplastic levels in blood and semen are correlated, indicating successful detoxification in semen following blood detoxification.

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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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2d

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