Peter Attia· MD
if you look at the difference between SPF 30 and SPF 50 you're getting a difference of I think it's like a ninety six or ninety ninety six percent protection against UV during that time versus ninety-eight percent protection
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.
if you look at the difference between SPF 30 and SPF 50 you're getting a difference of I think it's like a ninety six or ninety ninety six percent protection against UV during that time versus ninety-eight percent protection
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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.
Would love a "what would change this verdict" RSS feed. Sign me up if it exists.