2097870
Description
Note by christina.m, updated more than 1 year ago
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Created by christina.m
over 9 years ago
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Page 1
NATURE OF SLEEP 5 STAGES of sleep 5 sleep CYCLES between each cycle -> experience NREM sleep-> then REM during NREM -> 4 STAGES -> progresses to (STAGES 1 and 2) into DEEP or SLOW -WAVE sleep (STAGES 3 and 4) RAPID EYE- MOVEMENT (REM) sleep = experienced several times -> during night= produce intense electrical activity
Stage 1 and 2 Light sleep and CHANGE- ELECTRICAL ACTIVITY IN BRAIN part of the brain which is AWAKE= produces BETA WAVES changes to ALPHA and THETA waves HEART RATE SLOWS and TEMPERATURE DECREASES SLEEPER= in RELAXED STATE = easily woken
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