non-REM sleep

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non-REM sleep (n

)

A period of sleep characterized by decreased metabolic activity, slowed breathing and heart rate, and the absence of dreaming. In humans and certain other animals, the sleep cycle occurs in five stages, the first four consisting of non-REM sleep and the last stage consisting of REM sleep. This cycle repeats itself about five times during a normal episode of sleep. In non-REM sleep, Stage I is characterized by drowsiness, Stage II by light sleep, and Stages III and IV by deep sleep. In adult humans, non-REM sleep accounts for about 75-80 percent of total sleep. Also called NREM sleep. Compare REM sleep. See more at sleep.

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alternating NREM sleep REM sleep sleep			Volunteers whose naps included only non-REM sleep and those who rested but stayed awake didn't improve on the word test. The why of sleep: brain studies may reveal the purpose of a behavior ... by Saey, Tina Hesman / Science News When the caffeine-treated rats reached adulthood, their sleeping time was reduced, the length of time they took to reach the first stage of sleep was increased, and their non-REM sleep was fragmented. Coffee can give kids 'sleepless nights, breathing problems' by Asian News International Yes, even when we sleep in both REM (Rapid Eye Movements of dreaming), and Non-REM sleep without dreams. What Still, Small, Voice? by H. Bernard Wechsler / Advertising, marketing, public relations community			non-nucleoside non-nucleoside reverse transcriptase inhibitor non-observance non-operational non-participating non-partisan non-party Non-patience non-paying non-payment non-person non-playing non-poisonous non-political non-polluting non-practising non-productive non-professional non-profit-making non-proliferation non-proliferation treaty non-pros non-quota post non-recurring non-registered publication non-REM sleep non-resident non-residential non-resinous non-resiny non-resistant non-returnable non-scheduled non-sectarian non-self-sustaining containership non-sexist non-shrink non-skid non-skilled non-slave non-smoker non-smoking non-specialist non-specific non-standard non-standard speech non-starter non-stick non-stop non-striker non-submarine contact chart			Non-Recurring Engineering Charge Non-Recurring Expense Non-Recurring Revenue Non-Recurring Trip Charge Non-recursive Non-recursive Non-Recursive and Non-Systematic Code Non-Redeemable Non-reducing sugar non-redundant amino acid Non-Redundant Protein Data Bank Non-reflexive relation Non-Refundable Non-Refundable Amount Non-Refundable Deposit Non-refundable down payment Non-Regional Pronunciation Non-Registered On-Reserve Population non-registered publication Non-regressive autism Non-regressive autism Non-regressive autism Non-regressive autism Non-Regular Permanent Staff Non-Relativistic Quantum Mechanics Non-Relay Cell Non-religion Non-religious non-REM sleep Non-Removable Pin Non-renewable energy Non-renewable resource Non-renewable resources Non-renormalizable Non-Renounceable Right Non-Renounceable Rights Non-Repairable at Sea Non-Repairable Item Non-Repayable Credits Non-Repeatable Runout Non-Replaceable Forest License Non-Replacement Model Non-Reportable Non-Reportable Line Item Number Non-Reproducible Asset Non-Reproducible Assets Non-repudiation Non-repudiation Non-repudiation Non-Requesting Terminal Non-Reserved Lightpath Non-Reserved Physical Wavelength Link Non-Resettable Grand Total non-residence non-residences

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