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  2. Sleep and emotions - Wikipedia

    en.wikipedia.org/wiki/Sleep_and_emotions

    The circadian rhythm provides a person with a signal for when to sleep and when to wake up. [43] If circadian rhythm and sleep-wake cycle are misaligned, this might lead to negative affect and emotional instability. [44] It has been found that emotions vary depending on the circadian rhythm and the duration of how long one was awake. [45]

  3. Light effects on circadian rhythm - Wikipedia

    en.wikipedia.org/wiki/Light_effects_on_circadian...

    [6] [4] Light seems to have therapeutic antidepressant effects when an organism is exposed to it at appropriate times during the circadian rhythm, regulating the sleep-wake cycle. [6] [4] In addition to mood, learning and memory become impaired when the circadian system shifts due to light stimuli, [6] [20] which can be seen in studies modeling ...

  4. 9 Tips to Increase Deep Sleep (& How That Could Help You Lose ...

    www.aol.com/9-tips-increase-deep-sleep-125800276...

    Some research shows that the bright lights from screens can disrupt your sleep-wake cycle, making it harder to get quality rest. ... which affects: Mood. You might feel more irritable or anxious ...

  5. Why do I wake up at 3 a.m. every night? - AOL

    www.aol.com/keep-waking-middle-night-could...

    These cycles are inherent and might also establish someone as a night owl or an early bird, Goldstein said, and could cause difficulty with keeping up with a work schedule that does not align with ...

  6. How Sleep Deprivation Affects Your Mood - AOL

    www.aol.com/lifestyle/sleep-deprivation-affects...

    A new analysis helps clarify the complicated relationship between sleep and emotion.

  7. Neuroscience of sleep - Wikipedia

    en.wikipedia.org/wiki/Neuroscience_of_sleep

    The secretion of many hormones is affected by sleep-wake cycles. For example, melatonin , a hormonal timekeeper, is considered a strongly circadian hormone, whose secretion increases at dim light and peaks during nocturnal sleep, diminishing with bright light to the eyes. [ 132 ]

  8. Experts Say There Is in Fact a ‘Best’ Temperature for Sleep

    www.aol.com/lifestyle/experts-fact-best...

    Why sleep temperature matters. Temperature influences the body’s circadian rhythm, which regulates sleep-wake cycles, says Dr. Vendrame. In other words, your body’s temperature tells you when ...

  9. Sleep - Wikipedia

    en.wikipedia.org/wiki/Sleep

    The quality of sleep may be evaluated from an objective and a subjective point of view. Objective sleep quality refers to how difficult it is for a person to fall asleep and remain in a sleeping state, and how many times they wake up during a single night. Poor sleep quality disrupts the cycle of transition between the different stages of sleep ...