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Anorexia
Eating disorder in which person refuses to eat food in order to lose weight.
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Apnea
Brief interruption in breathing, sometimes during sleep
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Binge eating disorder
Pattern of eating involving stress eating, but with no purging.
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Bulimia Nervosa
Eating disorder involving recurrent episodes of bingeing followed by purging (vomit, laxative, excessive exercise)
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Cataplexy
Sudden loss of muscle tone that accompanies narcolepsy.
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Chronotherapy
Treatment for circadian rhythm sleep disorders that systematically moves bedtime later in intervals (phase delays) until it approches the desired bedtime.
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Circadian rhythm sleep disorder
Sleep disturbance resulting in sleepiness or insomnia, caused by the body's inability to synchronize its sleep patterns with the current pattern of day and night.
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Dyssomnia v. Hypersomnia
D: Problems getting to sleep or obtaining enough sleep
H: Excessive sleep. Someone with hypersomnia will fall asleep several times a day.
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Hypnagogic hallucinations
Part of narcolepsy involving frightening and vivid experiences during sleep that are visual, tactile, aural and mobile.
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Primary Insomnia
Difficulty in initiating, maintaining, or gaining from sleep. Not related to other medical or psychological problems.
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Melatonin
Hormone, activated by darkness, that controls the body's biological clock and to induce sleep.
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Non-rapid eye movement sleep (NREM)
Periods in the sleep cycle, divided in to four substages when the body may be active while the brain is relatively less active and dreaming does not occur.
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Parasomnias
Abnormal behaviors that occur during sleep (sleepwalk, talk, nightmares)
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Pica
Eating disorder in infants or individuals with mental retardation characterized by ingesting non nutritive substances such as paint, dirt or insects.
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Rapid eye movement sleep (REM)
Periodic intervals of sleep during which the eyes move rapidly from side to side, and dreams occur but body is inactive.
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Rumination disorder
Regurgitation and reswallowing of partially digested food, interfering with nutritional intake or weight gain.
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Sleep enuresis and Sleep paralysis
SE: peeing in your sleep
SP: Brief and frightening period at the beginning or end of sleep when the individual cannot move or speak; sometimes mistaken for nocturnal panic attacks.
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Somnambulism
Sleepwalking during NREM
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Slow wave/Delta sleep
Slow brain wave activity characterises deep sleep
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Total Sleep Time (TST)
Actual combined time a person spends sleeping each day.
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