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Sleep is an important part of the daily routine, as a person spends about a third of his time sleeping, and without sleep, a person will not be able to form pathways in the brain that allow him to learn and create new memories, or to maintain these pathways, and it will be difficult for him to focus and respond quickly, and areas control Several areas of the brain are involved in the process of sleeping and waking, and among these specialized areas: the hypothalamus, which contains groups of neurons that act as control centers affecting sleep and wakefulness, in addition to the brain stem. Which is located at the base of the brain, and plays an important role in one of the stages of sleep known as rapid eye movement sleep (REM sleep), as it sends signals to relax the muscles necessary for body movements and limb movements, and the pineal gland works gland), increases the production of the hormone melatonin, which helps sleep once the lights go down.