Andrew Huberman· PhD
being outdoors for two hours a day could significantly reduce the probability that these children would develop nearsightedness.
The evidence is convergent. Multiple independent sources reach the same conclusion, the underlying mechanism is well-characterized, and even the field's most cautious voices treat it as worth doing.
being outdoors for two hours a day could significantly reduce the probability that these children would develop nearsightedness.
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Kids that look at things up close too much, and adults that look at things up close too much become nearsighted. And there's a beautiful set of clinical trials now where mainly in kids, if kids get outside for two hours a day, getting a lot of this UVB and blue light that we're told is so terrible for us, but they get it from sunlight, they actually can reverse myopia, or reduce the incidence of myopia, maybe even glaucoma.
how it can help reverse or prevent myopia nearsightedness
Getting two hours a day of outdoor time without sunglasses has a significant effect on reducing the probability that you will get myopia.