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

Sleep inertia

Health care; Sleep disorder

Feelings of grogginess and/or sleepiness that persist longer than 10 to 20 minutes after waking up. Symptoms include what goes under the scientific term is transitory "hypovigilance" or low ...

Sleep disorders

Health care; Sleep disorder

General term applied to a broad range of illnesses, including dysfunctional sleep mechanisms, abnormalities in physiological functions during sleep, abnormalities of the biological clock, and sleep ...

Light therapy

Health care; Sleep disorder

Form of therapy where the person is exposed to bright light at the appropriate time of day to effect the timing, duration and quality of sleep. Also used in the treatment of Seasonal Affective ...

Sleep disordered breathing

Health care; Sleep disorder

General description for a group of disorders that produce pauses in breath in the sleeper or that reduce the amount of air the person is getting. Apnea is a common type.

Zeitgebers

Health care; Sleep disorder

German for "time givers". External cues that affect the Circadian cycle. Examples include sunlight, familiar morning noises and sounds, and meals.

White noise

Health care; Sleep disorder

Heterogeneous mixture of sound waves extending over a wide frequency range that may be used to mask unwanted noise that may interfere with sleep.

Desynchronization

Health care; Sleep disorder

In the context of sleep studies and disorder diagnosis, the term refers to lack of alignment between external signals and the biological clock. The cause of many circadian disorders.