Sleep

sleep deprivation

hours needed

benefits of sleep

improves memory

quicker recovery

reduces stress

better mood

lowers blood pressure

stronger immunity

better skin

Adults 7-9

Younger adults 7-9

Infants 12-15

Newborns 14-17

Toddlers 11-14

Teenagers 8-10

Preschoolers 10-13

School age 9-11

Brain cycles

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Stage 1

Stage 2

REM

Stage 3

Rapid eye movement, dreams, breathing is fast and irregular, hear rate is fast

light sleep and brain waves slow down

light sleep before you enter deep sleep and brain waves are marked by brief bursts of electrical activity.

period of deep sleep where heartbeat and breathing slow to the lowest levels

insomnia

inability to sleep

3 million cases per year

causes

stress

inconstant sleep patterns

hormone imbalances

depression

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