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Can You Harness Light To Get Better Sleep?
Modern life is all about innovating our way out of our inabilities. We’re not meant to fly, or live 20 stories in the air, or speak to a friend in New Zealand. And (buzzkill alert) we’re not meant to be awake when the sun don’t shine. Of all that we can now do, the latter may be the most universal. If we’ve mastered anything, it’s light. For the large part, this is good news; extra hours in the “day” mean we can socialize longer and get more work done.
Trouble is, evolution has programmed the human body to equate light with wakefulness.