Andrew Huberman· PhD
A recent PNAS study showed that 1 night of 100lux light exposure (during sleep!) altered morning glucose tolerance.
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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.
A recent PNAS study showed that 1 night of 100lux light exposure (during sleep!) altered morning glucose tolerance.
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even having a small amount of light in the room which isn't even that bright while you're sleeping with eyes closed can disrupt morning glucose levels