Deves World

Why do we sleep ?

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Synopsis

Are you a night owl ? Or a morning type ? Your circadian rhythm dictates a great number of things. It’s what guides your body’s desire for sleep – or the opposite of sleep. It’s what makes you want food or drink at certain times. It’s even responsible, to an extent, for moodiness and emotional ups and downs, as well as your metabolic rate. But here’s the thing: circadian rhythms vary from person to person – a fact that causes a large chunk of the population both to hate alarm clocks and to suffer from health complications. This portion, which makes up about 30 percent of the population, consists of “night owls,” people whose circadian rhythm inclines them to seek slumber late at night and to rise late in the morning. Distressingly for these nocturnal folks, society is morning-oriented. School and work typically begin in the morning and last through the afternoon, right when the body clocks of night owls say they should be asleep, or at least still sleepy. Being out of sync with society’s schedule puts night o