Bryan Johnson· Author
Good sleep, nutrition, and exercise all improve testosterone
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The evidence is convergent. Multiple independent sources reach the same conclusion, the underlying mechanism is well-characterized, and even the field's most cautious voices treat it as worth doing.
Good sleep, nutrition, and exercise all improve testosterone
Every Sunday: the week’s new conflicts and verdict changes — and nothing else.
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.
Would love a "what would change this verdict" RSS feed. Sign me up if it exists.
I think that it is totally possible for a nearly 50-year-old male to have a robust testosterone if you are living your life well if you're sleeping if you're getting nutrients if you're not overstressing yourself
I'm 48 years old and my testosterone is 857.