Peter Attia· MD
when you go just below uh what we see with visible light you get into ultraviolet light an ultraviolet light um exists from about 100 nanm to that upper limit of 400 nanometers
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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.
when you go just below uh what we see with visible light you get into ultraviolet light an ultraviolet light um exists from about 100 nanm to that upper limit of 400 nanometers
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ultraviolet light an ultraviolet light um exists from about 100 nanm to that upper limit of 400 nanometers where we just start to be able to see it at Blue Light and it's really broken down into three types and people have heard these terms but I think it's helpful to understand what they mean so you've you've got UVA UVB and UV C or ultraviolet a b and c