5 Steps to a Good Night's Sleep
Do z math: "Most adults require seven to nine hours of sleep a night," says Dr. Emsellem. Since constant catch-up can make it hard to determine exactly how much your body needs, figure it out on your next vacation, when you're miles away from your alarm clock and jam-packed schedule. "You should reach a point where you're going to bed at the same time, rising at the same time, and feeling rested," says Clete Kushida, MD, PhD, director of the Center for Human Sleep Research at Stanford University. "That's your optimal sleep length." Once back home, make it a goal to stick to that amount, since skimping even a little can have a huge effect on your mood and concentration: "Studies have shown that if you cut back by about an hour just for one night, your alertness decreases by up to one-third," says Dr. Kushida.
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