There is nothing worse than lying in your bed, with your mind racing, and you can’t fall asleep. The longer you lie in bed, the more anxious you get about falling asleep, which makes it even harder to catch some ZZZs. You’ve tried clearing your mind, but can’t. You’ve tried counting sheep but reached 100. What do you do now?

On a recent Real Time with Bill Maher, neuroscientist Andrew Huberman made an off-the-cuff remark about a sleep hack that he swears by, and it’s based on brain research. Huberman is a Stanford University neuroscientist and tenured professor of neurobiology and ophthalmology. He’s also the host of the popular podcast Huberman Lab, which focuses on health and science.

How to fall asleep fast

“In fact, if you wake up in the middle of the night and you’re having trouble falling back asleep, try just doing some long, extended exhales. And get this, this sounds really weird, but it has a basis in physiology. Keep your eyes closed and just move your eyes from side to side behind your eyelids like this, back and forth,” Huberman told Maher as he moved his........

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