definition of sleep - EAS

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  1. Từ điển

    Tra cứu
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    sleep
    [slēp]
    DANH TỪ
    sleep (danh từ)
    1. a condition of body and mind that typically recurs for several hours every night, in which the nervous system is relatively inactive, the eyes closed, the postural muscles relaxed, and consciousness practically suspended:
      "I was on the verge of sleep" ·
      "he talked in his sleep" · "a good night's sleep" · "the effects of sleep loss"
      từ đồng nghĩa:
      nap · doze · rest · siesta · drowse · catnap · beauty sleep · bye-byes · slumber
      • literary
        a state compared to or resembling sleep, such as death or complete silence or stillness:
        "a photograph of the poet in his last sleep"
    2. a gummy or gritty secretion found in the corners of the eyes after sleep:
      "she sat up, rubbing the sleep from her eyes"
    ĐỘNG TỪ
    sleep (động từ) · sleeps (thời hiện tại ngôi thứ ba) · slept (thì quá khứ) · slept (quá khứ phân từ) · sleeping (hiện tại phân từ)
    1. be in a state of sleep; be asleep:
      "she slept for half an hour"
      từ đồng nghĩa:
      be asleep · doze · rest · take a siesta · nap · take a nap · catnap · drowse · sleep like a log/top · slumber · be in the arms of Morpheus
      từ trái nghĩa:
      • (sleep through)
        fail to be woken by:
        "he was so tired he slept through the alarm"
      • be inactive or dormant:
        "Copenhagen likes to be known as the city that never sleeps"
      • literary
        be at peace in death; lie buried:
        "he sleeps beneath the silver birches"
    2. provide (a specified number of people) with beds, rooms, or places to stay the night:
      "studios sleeping two people cost $70 a night"
    GỐC
    Old English slēp, slǣp (noun), slēpan, slǣpan (verb), of Germanic origin; related to Dutch slapen and German schlafen.
    Dịch sleep sang
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  2. Mọi người cũng hỏi
    What are the five functions of sleep?

    Sleep has been described using Tinbergen's four questions as a framework (Bode & Kuula, 2021):

    • Function: Energy restoration, metabolic regulation, thermoregulation, boosting immune system, detoxification, brain maturation, circuit reorganization, synaptic optimization, avoiding danger.
    • Phylogeny: Sleep exists in invertebrates, lower vertebrates, and higher vertebrates. ...
    • Mechanisms: Mechanisms regulate wakefulness, sleep onset, and sleep. ...

    More items...

    www.sleepfoundation.org/children-and-sleep
    What does sleep stand for?
    Sleep is generally divided into two stages: REM (rapid eye movement) and NREM (non-rapid eye movement). NREM is further split into three parts: starting to fall asleep, light sleep, and deep sleep. During deep sleep, your breathing slows down, your blood pressure drops, and your energy is renewed. During a typical night, your sleep alternates ...
    www.thensf.org/what-is-rem-sleep/
    Tìm kiếm cho:What does sleep stand for?
    What are the functions of sleep?

    Timing

    • Circadian clock. Sleep timing depends greatly on hormonal signals from the circadian clock, or Process C, a complex neurochemical system which uses signals from an organism's environment to recreate an ...
    • Process S. Generally speaking, the longer an organism is awake, the more it feels a need to sleep ("sleep debt").
    • Social timing. ...
    • Distribution. ...
    www.news-medical.net/health/Function-of-Sleep.aspx
    What are the different levels of sleep?
    • You are having trouble falling or staying asleep at least three nights per week
    • You regularly wake up feeling unrested
    • Your daytime activities are affected by fatigue or mental alertness
    • You often need to take a nap to get through the day
    • A sleep partner has told you that you snore or gasp when you are asleep

    More items...

    www.verywellhealth.com/the-four-stages-of-sleep-2795920
  3. https://www.merriam-webster.com/dictionary/sleep

    Definition of sleep (Entry 2 of 2) intransitive verb. 1 : to rest in a state of sleep. 2 : to be in a state (as of quiescence or death) resembling sleep. 3 : to have sexual relations —usually used with with was sleeping with a coworker — see also sleep together. transitive verb.

  4. https://medical-dictionary.thefreedictionary.com/sleep

    sleep [slēp] a period of rest for the body and mind, during which volition and consciousness are in partial or complete abeyance and the bodily functions partially suspended. Sleep has also been described as a behavioral state marked by characteristic immobile posture and diminished but readily reversible sensitivity to external stimuli. NREM and REM ...

  5. https://healthysleep.med.harvard.edu/healthy/science/what

    After all, detailed analysis of our own sleep isn't really an option, given that we rarely know that we're sleeping when we're asleep. And even if we observe the sleep of others, so much of what they experience—changes in the functions of their brains and bodies—is not easily seen from the outside. Sleep scientists have explored these changes in depth, and their definition of sleep is …

  6. https://www.thefreedictionary.com/sleep

    sleep. (slēp) A natural state of rest, occurring at regular intervals, in which the eyes usually close, the muscles relax, and responsiveness to external events decreases. Growth and repair of the tissues of the body are thought to occur during sleep, and energy is conserved and stored.

  7. https://www.news-medical.net/health/What-is-sleep.aspx

    Jan 29, 2020 · Definition of sleep Sleep is a state where awareness to environmental stimuli is reduced. Sleep is different from states of coma, hibernation and death by the fact that it can be rapidly reversed.

    • Thời gian đọc ước tính: 4 phút
    • What is SLEEP? definition of SLEEP (Psychology Dictionary)

      https://psychologydictionary.org/sleep

      Apr 13, 2013 · Psychology Definition of SLEEP: a state featuring relaxation, reduced metabolism and relative insensitivity to stimulation. We have unique brain wave patterns

    • https://www.ninds.nih.gov/.../Understanding-Sleep

      There are two basic types of sleep: rapid eye movement (REM) sleep and non-REM sleep (which has three different stages). Each is linked to specific brain waves and neuronal activity. You cycle through all stages of non-REM and REM sleep several times during a typical night, with increasingly longer, deeper REM periods occurring toward morning.

    • https://www.britannica.com/science/sleep

      Mar 09, 2022 · sleep, a normal, reversible, recurrent state of reduced responsiveness to external stimulation that is accompanied by complex and predictable changes in physiology. These changes include coordinated, spontaneous, and internally generated brain activity as well as fluctuations in hormone levels and relaxation of musculature.

    • https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5390528

      Sleep is a complex physiological process that is regulated globally, regionally, and locally by both cellular and molecular mechanisms. It occurs to some extent in all animals, although sleep expression in lower animals may be co-extensive with rest. Sleep regulation plays an intrinsic part in many behavioral and physiological functions.



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