| Sleep Vocabulary | |||
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nocturnal - being active at night norepinephrine - a hormone produced by chromaffin cells of the adrenal medulla, which mediates transmission of sympathetic nerve impulses. NREM (non-REM) - the four stages of sleep during which sleepers do not experience rapid eye movement. olfactory gland - A type of serous gland in the nasal mucous membrane physiological - characteristic of or appropriate to an organism's healthy or normal functioning anatomy PLMD (Periodic Limb Movement Disorder) - the repeated moving or twitching of the outer extremities during sleep posture - the position of the body, characteristic or assumed for a special purpose psychological - directed toward the mind specifically in its cognitive function recurrent dreams - recurrent dreams are dreams which you experience repeatedly over a long period of time, usually years REM (rapid-eye-movement) - stage of sleep during which the eyes move rapidly, though the eyelids are closed, and brain and physiological activity resembles that observed during wakefulness; dream sleep rest - to cease from action and refrain from labor or exertion to be free from anxiety or disturbance RLS (Restless Leg Syndrome) - a movement disorder, which causes abnormal sensations in extremities, usually described as “crawling” or “burning” and gives victims an irresistible urge to move the affected extremity sensory organs - organs of or relating to sensation or to the senses serotonin - a compound which plays a role in neurotransmission SIDS (Sudden Infant Death Syndrome) - when an infant dies suddenly and without known cause in its sleep
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