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- Dictionarysleep/sliːp/
noun
- 1. a condition of body and mind that typically recurs for several hours every night, in which the eyes are closed, the postural muscles relaxed, the activity of the brain altered, and consciousness of the surroundings practically suspended: "I was on the verge of sleep"
- 2. a gummy secretion found in the corners of the eyes after sleep: "she sat up, rubbing the sleep from her eyes"
verb
- 1. be in a state of sleep; be asleep: "she slept for half an hour"
- 2. provide (a specified number of people) with beds, rooms, or places to stay the night: "studios sleeping two people cost £70 a night"
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Oct 1, 2021 · Sleep is a state that is characterized by changes in brain wave activity, breathing, heart rate, body temperature, and other physiological functions. Depending on the sleep stage, different physiological functions may be more active and variable (for example, during REM sleep), or less active and more stable (for example, during NREM.
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.
Jun 8, 2024 · Sleep, a normal, reversible, recurrent state of reduced responsiveness to external stimulation that is accompanied by complex and predictable changes in physiology. Sleep contrasts with wakefulness, in which state there is an enhanced potential for sensitivity and an efficient responsiveness to external stimuli.
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.
Jun 19, 2023 · Overview. What is sleep? Sleep is a normal body process that allows your body and brain to rest. At first glance, sleep is deceptively simple. For most people, it’s just a matter of getting comfortable, closing your eyes and drifting into slumber.
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.
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.
Jun 18, 2024 · Brain Basics: Understanding Sleep. Sleep is an important part of your daily routine—you spend about one-third of your time doing it. Quality sleep – and getting enough of it at the right times -- is as essential to survival as food and water.
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...
