Bryan Johnson· Author
In people aged 65-85, higher happiness was linked to a 22% reduced risk of all-cause mortality over 15 years.
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The headline is broadly defensible, but the qualifications matter. Effect sizes vary by population, the strongest claims rest on shorter trials, and credible voices push back on how it's typically framed.
In people aged 65-85, higher happiness was linked to a 22% reduced risk of all-cause mortality over 15 years.
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Native comments, Twitter mentions, and Reddit threads about this claim — surfaced together so the conversation isn't fragmented across platforms.
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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