Peter Attia· MD
now if red light is being delivered by LEDs which is the most most common way that it is it's going to be able to penetrate about 2 to 3 millim um into skin
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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.
now if red light is being delivered by LEDs which is the most most common way that it is it's going to be able to penetrate about 2 to 3 millim um into skin
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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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now if red light is delivered by a laser because again you now have a more um focused um form of of of laser of light energy it could penetrate significantly higher than that it could go from 1 to 4 cm