What causes sleepiness?

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Sleep problems stem from multiple causes: jet lag, working graveyard or rotating shifts that go against the body's natural sleep rhythms, or skimping on sleep in order to stay on top of a full-throttle schedule.

Others with sleep problems may have bona fide sleep disorders, such as sleep apnea, restless legs syndrome, or narcolepsy.

Regardless of the cause, excessive sleepiness "is becoming more of a legitimate complaint," both among patients and doctors, says David G. Davila, MD, a National Sleep Foundation spokesman and board member who practices sleep medicine in Little Rock, Ark.

This answer should not be considered medical advice...This answer should not be considered medical advice and should not take the place of a doctor’s visit. Please see the bottom of the page for more information or visit our Terms and Conditions.

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