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blue blockers
Glasses or filters that block blue light wavelengths, often used in the evening to improve sleep.
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"And if you're somebody who's really keen on blue blockers and you're wearing your blue blockers all day, well, don't wear them outside. And in fact, you're probably doing yourself a disservice by wearing them in the morning and in the daytime."
Attribution: He advises against wearing blue blockers during the day, suggesting they interfere with beneficial light exposure