Sleep disorder

Sleep disorder

The disturbance of normal sleep patterns caused by a broad range of illnesses, including dysfunctional sleep mechanisms, abnormalities in physiological functions during sleep, abnormalities of the biological clock, and sleep disturbances that are induced by factors extrinsic to the sleep process.

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Sleep disorder

delta sleep

Health care; Sleep disorder

Stage of sleep in which EEG delta waves are prevalent or predominant (sleep stages 3 and 4). Called "slow wave" sleep because brain activity slows down dramatically from the "theta" rhythm of Stage 2 ...

excessive daytime sleepiness (EDS)

Health care; Sleep disorder

Subjective report of difficulty in staying awake, accompanied by a ready entrance into sleep when the individual is sedentary. EDS suggests the presence of a sleep disorder and is different from ...

excessive daytime somnolence

Health care; Sleep disorder

Subjective report of difficulty in staying awake, accompanied by a ready entrance into sleep when the individual is sedentary. EDS suggests the presence of a sleep disorder and is different from ...

cataplexy

Health care; Sleep disorder

Sudden muscle weakness associated with narcolepsy. It is often triggered by emotions such as anger, surprise, laughter, and exhilaration. No loss of consciousness is involved – i.e. it is not a black ...

somniloquy

Health care; Sleep disorder

Talking while asleep.

bruxism

Health care; Sleep disorder

Teeth grinding or jaw clenching during sleep. The term "clenching" means you tightly clamp your top and bottom teeth together, especially the back teeth. The stressful force of clenching causes ...