Sleep Disturbance : Articles

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Sleep disorders involve any difficulties related to sleeping, including difficulty falling or staying asleep, falling asleep at inappropriate times, excessive total sleep time, or abnormal behaviors associated with sleep.
Source:ADAM
Date:July 25, 2006
Sleep disorders are chronic disturbances in the quantity or quality of sleep that interfere with a person's ability to function normally. An estimated 15% of Americans have chronic sleep problems, while about 10% have occasional trouble sleeping.
Source:Gale Encyclopedia of Mental Disorders
Sleep disorders are a group of syndromes characterized by disturbances in the amount, quality, or timing of sleep, or in behaviors or physiological conditions associated with sleep. Although sleep is a basic behavior in all animals, its functions in maintaining health are not completely understood.
Source:Gale Encyclopedia of Alternative Medicine
Problems involving disruption in sleep pattern or inability to sleep. Sleep is a period of decreased activity and muscle relaxation, characterized by patterns of deep sleep (where brain waves are slower, called non-rapid eye movement sleep) alternating with dreaming sleep, known as rapid eye movement (REM) sleep.
Source:Gale Encyclopedia of Childhood and Adolescence
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