“Sleep that knits up the ravelled sleeve of care, The death of each day's life, sore labor's bath, Balm of hurt minds, great nature's second course, Chief nourisher in life's feast.”― William Shakespeare, Macbeth
S L E E P
Sleep is a very important part of our physical, emotional and mental health. The average person will sleep for one third of their life. The way we prepare for sleep is very important because the quality of sleep we receive shapes our emotional, mental and physical health. Sleep is an exquisitely complex, metabolically active, and deliberately ordered series of unique stages.
Numerous functions of the brain are restored by, and depend upon, sleep.
Throughout your time asleep, your brain will cycle repeatedly through two different types of sleep: REM (rapid-eye movement) sleep and non-REM sleep. As you cycle into REM sleep, the eyes move rapidly behind closed lids, and brain waves are similar to those during wakefulness. Breath rate increases and the body becomes temporarily paralysed as we dream.
Each stage of sleep - light non-REM sleep, deep non-REM sleep, and REM sleep - offer different brain benefits at different times of night. Thus, no one type of sleep is more essential than another. Losing out on any one of these types of sleep will cause brain impairment.
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