06-28-2022, 11:21 AM
You cycle through REM and four stages of non-REM (NREM) sleep several times throughout a typical night of sleep. The lightest level of NREM sleep is stage 1, while the deepest state is stage 4.
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You may experience exhaustion, drowsiness, and difficulty focusing and maintaining concentration when you are awake if you are frequently disturbed and are unable to cycle between these different types and stages of sleep. You run a higher risk of getting into automobile accidents and other mishaps if you're sleepy.
Rhythmic Circadian Disorders:
People often sleep at night because of the 9 to 5 working norms as well as the intimate relationship between our natural sleep and waking rhythms, which are controlled by an internal "clock."
This clock is located in the suprachiasmatic nucleus of the hypothalamus, a tiny region of the brain. It is located directly over the nerves that leave the back of our eyes. Exercise and light activity "reset" the clock and allow it to advance or rewind. Circadian rhythm abnormalities are anomalies involving this clock ("circa" means "about," and "dies" means "day").
Jet lag, adjusting to shift work, delayed sleep phase syndrome (you fall asleep and wake up too late), and advanced sleep phase syndrome is examples of circadian rhythm abnormalities (you fall asleep and wake up too early).read more