![]() For the same reason, you'll want to leave the sunglasses behind. Going outside for the light is better than sitting by a window because glass filters out some of the ultraviolet light that assist the clock setting. It doesn't matter whether you're a night owl or a mourning dove, he noted - the important thing is to get some sun for at least a few minutes soon after getting out of bed. Huberman explained it to me this way: If sunlight reaches your eyes soon after you wake, it triggers a neural circuit that controls the timing of the hormones cortisol and melatonin, which affect sleep. "In higher latitudes in the depths of winter, it may be too dark, but in most places most of the time, there's still plenty of light energy." When it comes to sleep, he told me, the important thing is to get sunlight on your eyes upon waking: "Even when it's cloudy, that sets your biological clock," he said. If taking an outdoor trek isn't safe, he added, moving around indoors can also create optic flow. ![]() "The actual movement of objects past us as we walk quiets some of the circuits that are responsible for stress," Huberman said. That routine may well be the reason I'm sleeping fine and feeling little stress while sheltering in place, said Andrew Huberman, PhD, associate professor of neurobiology and of ophthalmology.įirst, that morning walk calms me through something called optic flow. My Chihuahua-Jack Russell mix insists that I walk him around the neighborhood for at least 45 minutes after breakfast. I've been working from home since the COVID-19 pandemic hit in early March, but I still leave the house every morning.
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