Melatonin is one of the most widely used over-the-counter sleep aids today. You’ll find it on every supplement aisle, with labels promising better rest, fewer s ...

You learn what your body can do on little sleep but also what it can’t do on little sleep,” he says. These days, as a doctor ...

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Seasonal affective disorder, or SAD, is a type of recurrent major depressive disorder in which episodes of depression occur during the same season each year. This condition is sometimes called the ...