Bryan Johnson· Author
early mornings and later afternoons are better when the UV index is low when the UV index is high (10 am - 4 pm), protect your skin can protect with clothing, a UV umbrella, hat and/or mineral sunscreen
Loading…
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.
early mornings and later afternoons are better when the UV index is low when the UV index is high (10 am - 4 pm), protect your skin can protect with clothing, a UV umbrella, hat and/or mineral sunscreen
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.
+ If you’re getting direct sun exposure when the UV index is high (10 am - 4 pm), you can protect your skin with options such as clothing, a UV umbrella, a hat and or mineral sunscreen.
Be the sun in the mornings when the UV index is low or the evenings. A rule of thumb I use is getting sun exposure when the UV index is below three. When it's above three, have some kind of protection. a UV umbrella, a hat, a mineral sunscreen with UVA and UVB protection.