PSY - Rem Sleep / Sleep Disorders

NREM1

Alpha Waves - Awake but relaxed state… Transition to sleep marked by slowed breathing, and irregular brain waves. (Can experience hallucinations and hypnagogic sensations during NREM1 sleep.

NREM2

Theta Waves - Leads to rapid, rhythmic brain activity. Body becomes less aware of surroundings. Body Temperature Drops, Eye movements stop. Breathing and heart rate become more regular.

NREM3

Delta Waves - Loud noises or activity may fail to wake a sleeping person. (Sleeping walking is possible.) Muscles are completely relaxed, Blood pressure drops and breathing slows, Progress into your deepest sleep. Children will wet the bed in NREM3.

REM

Heart Rate speeds up, breathing becomes more rapid, eyes dart around. Dreaming occurs, Genitals aroused. Body is Paralyzed

Circadian Rhythm’s

Internal biological Clock of 24 - hour cycle of day and night. As morning approaches, body temperature rises, peaks during day, dips in early afternoon, and begins to drop in evening. Altered by age and experience.

Pineal Glands

to receive and convey information about the current light-dark cycle from the environment via the production and secretion of melatonin cyclically at night (dark period)

Melatonin

a hormone that your brain produces in response to darkness. It helps with the timing of your circadian rhythms (24-hour internal clock) and with sleep.

Insomnia

a sleep disorder in which you have trouble falling and/or staying asleep.

narcolepsy

A condition that makes you fall asleep extremely often whenever in relaxing surroundings.

Sleep Apnea

Breathing repeatedly stops, and starts.

Night Terros

a sleep disorder in which a person quickly awakens from sleep in a terrified state.

rem rebound

a phenomenon in which a person temporarily receives more REM sleep than they normally would.