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Sleep is a state of reduced mental and physical activity in which consciousness is altered and certain sensory activity is inhibited. During sleep, there is a marked decrease in muscle activity and interactions with the surrounding environment.
Oct 1, 2021 · From observing changes in behavior and responsiveness, scientists have noted the following characteristics that accompany and in many ways define sleep: Sleep is a period of reduced activity. Sleep is associated with a typical posture, such as lying down with eyes closed in humans. Sleep results in a decreased responsiveness to external stimuli.
Jul 20, 1998 · sleep, a normal, reversible, recurrent state of reduced responsiveness to external stimulation that is accompanied by complex and predictable changes in physiology.
The meaning of SLEEP is the natural, easily reversible periodic state of many living things that is marked by the absence of wakefulness and by the loss of consciousness of one's surroundings, is accompanied by a typical body posture (such as lying down with the eyes closed), the occurrence of dreaming, and changes in brain activity and ...
SLEEP definition: 1. the resting state in which the body is not active and the mind is unconscious: 2. to start…. Learn more.
Oct 23, 2020 · Sleep is a complex and dynamic biological process that still isn’t fully understood. Learn about how sleep works and why it’s vital for overall health.
Sleep definition: to take the rest afforded by a suspension of voluntary bodily functions and the natural suspension, complete or partial, of consciousness; cease being awake.. See examples of SLEEP used in a sentence.
noun. a natural and periodic state of rest during which consciousness of the world is suspended. “he didn't get enough sleep last night” synonyms: slumber. see more. noun. a period of time spent sleeping. “he felt better after a little sleep ” synonyms: nap. see more. noun. a torpid state resembling deep sleep. synonyms: sopor. see more. noun.
A1 [ I ] to be in the state of rest when your eyes are closed, your body is not active, and your mind is unconscious: We had to sleep in the car that night. Did you sleep well? Fewer examples. The inability to sleep is often a symptom of some other illness. These animals sleep during the day and hunt at night.
Sleep is the balm that soothes and restores after a long day. Sleep is largely driven by the body’s internal clock, which takes cues from external elements such as sunlight and...
