REM SLEEP – TYPES AND STAGES OF SLEEP

REM sleep is most easily recognized by the rapid and apparently random side-to-side movements of the closed eyes REM sleep occurs in cycles of about 90-120 minutes throughout the night, and it accounts for up to 20-25% of total sleep time in adult humans, although the proportion decreases with age (a newborn baby may spend … Continue reading REM SLEEP – TYPES AND STAGES OF SLEEP