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Social support has been shown to be related to health: it can help reduce stress and may even improve survival from illness.
Circadian Rhythm Disorder
A disruption in the natural biological clock leading to sleep disturbances and other health problems.
Sleep Onset
The transition from wakefulness to sleep, marking the beginning of the sleep cycle.
Disorders Of Arousal
Sleep disorders that involve recurrent episodes of incomplete awakening from sleep that seem to mix elements of wakefulness and NREM sleep.
Sleep Terrors
A sleep disorder causing feelings of panic or dread typically occurring during the first hours of stage 3–4 non-rapid eye movement (NREM) sleep and lasting for 1 to 10 minutes.
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