Deep sleep refers to slow-wave sleep — a stage in the sleep cycle when brain waves slow down. Getting enough deep sleep is crucial for numerous bodily functions. But how to increase deep sleep isn’t ...

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With daylight saving time fast approaching, our sleep cycles are about to get thrown for a loop. But don’t panic — you don’t have to rely on pharmaceutical sleep aids that leave you groggy or tired.

It may seem innocent, but it's probably getting in the way of good rest.