UNIT 2 LESSON 5 Flashcards
Sleep and Dreams
the periodic loss
of natural consciousness, distinct from coma, anesthesia, or hibernation
sleep
generally based on sunlight; our body uses this cycle to induce both sleeping (melatonin) and waking signals (cortisol)
circadian rhythm
First Stage of Sleep
Waking Beta
Second Stage of Sleep
Waking Alpha
Third Stage of Sleep
Non-REM 1 (hallucinations, falling, jerking)
Fourth Stage of Sleep
Non-REM 2
Fifth Stage of Sleep
Non-REM 3 (delta brain waves; “deep sleep”)
Sixth Stage of Sleep
REM (lasts around 10 mins with vivid dreaming)
consistent lack of sleep and/or inability to maintain sleep
Insomnia
uncontrolled bouts of falling asleep
Narcolepsy
temporary seizing of breath and micro-wake ups that interrupt sleeping cycles and deplete people of deep sleep
Sleep apnea
a sleep disorder that causes subjects to experience extreme fright or dread
Night terrors
vivid, hallucinations
that are often of regular, familiar details in our life we regret or relish
dreams