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  2. Neuroscience of sleep - Wikipedia

    en.wikipedia.org/wiki/Neuroscience_of_sleep

    The effect of sleep duration on somatic growth is not completely known. One study recorded growth, height, and weight, as correlated to parent-reported time in bed in 305 children over a period of nine years (age 1–10). It was found that "the variation of sleep duration among children does not seem to have an effect on growth."

  3. Sleep onset - Wikipedia

    en.wikipedia.org/wiki/Sleep_onset

    A fall in the level of glycogen causes an increase in the level of extracellular adenosine, which has an inhibitory effect in neural activity. This accumulation of adenosine serves as a sleep-promoting substance. [2] The majority of sleep neurons are located in the ventrolateral preoptic area (vlPOA).

  4. Sleep inertia - Wikipedia

    en.wikipedia.org/wiki/Sleep_inertia

    Prior sleep deprivation increases the percentage of time spent in slow-wave sleep (SWS). Therefore, an individual who was previously sleep deprived will have a greater chance of experiencing sleep inertia. [4] [7] Adenosine levels in the brain progressively increase with sleep deprivation, and return to normal during sleep. Upon awakening with ...

  5. Sleep apnea impacts brain in ways that may affect cognitive ...

    www.aol.com/lifestyle/sleep-apnea-impacts-brain...

    “Of importance, if sleep apnea affects the brain health and increases the risk for dementias, then treatment of it can serve as a strategy to improve brain health and prevent these disorders ...

  6. Adenosine - Wikipedia

    en.wikipedia.org/wiki/Adenosine

    Adenosine is a key factor in regulating the body's sleep-wake cycle. [40] Adenosine levels rise during periods of wakefulness and lowers during sleep. Higher adenosine levels correlate with a stronger feeling of sleepiness , also known as sleep drive or sleep pressure. [ 41 ]

  7. Sleep - Wikipedia

    en.wikipedia.org/wiki/Sleep

    Humans may suffer from various sleep disorders, including dyssomnias, such as insomnia, hypersomnia, narcolepsy, and sleep apnea; parasomnias, such as sleepwalking and rapid eye movement sleep behavior disorder; bruxism; and circadian rhythm sleep disorders. The use of artificial light has substantially altered humanity's sleep patterns. [10]

  8. Caffeine dependence - Wikipedia

    en.wikipedia.org/wiki/Caffeine_dependence

    Moderate physical dependence often arises from prolonged long-term caffeine use. [4] In the human body, caffeine blocks adenosine receptors A 1 and A 2A. [5] Adenosine is a by-product of cellular activity: the stimulation of adenosine receptors produces sedation and a desire for sleep.

  9. Sleep Affects Your Testosterone Levels Way More Than ... - AOL

    www.aol.com/sleep-affects-testosterone-levels...

    A lack of sleep can also worsen other health conditions that might affect testosterone. “Sleep disorders including a decrease in sleep quality, inadequate sleep duration, disruption of circadian ...