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#100
#adam
#alrighty
#andrea
#anyone
#attack
#away
#back
#bad
#band
#bates
#battle
#bed
#being
#big
#bill
#birthday
#bite
#blah
#blake
#blue
#blush
#bomb
#boom
#boy
#break
#brothers
#bugs
#buried
#call
#calm
#cancer
#care
#carl
#cat
#cats
#chips
#cookies
#coolest
#crazy
#creepy
#dark
#daryl
#days
#dead
#death
#deep
#doctor
#dog
#dogs
#drank
#dream
#drop
#dumb
#ear
#eat
#end
#everyday
#eveyday
#exchange
#eyes
#fact
#facts
#fame
#fandom
#fang
#fans
#far
#fast
#fate
#fear
#fight
#fine
#fire
#fix
#flesh
#fly
#food
#foot
#forever
#french
#fun
#funny
#gacts
#gain
#game
#giant
#girl
#goat
#going
#gone
#good
#green
#grim
#grimm
#grrrrrrr
#guilty
#gun
#gus
#gym
#hannibal
#happy
#hard
#harry
#hate
#hats
#hey
#hike
#hit
#hole
#holes
#home
#hope
#hot
#hotel
#house
#human
#hurt
#idk
#innocent
#jack
#jail
#jump
#kill
#killer
#kissy
#kneel
#lag
#lang
#last
#laugh
#launch
#law
#leo
#libra
#lie
#life
#lights
#lock
#loe
#lone
#long
#lose
#lost
#lounge
#love
#loved
#lucas
#man
#mane
#maybe
#men
#meril
#mexico
#mill
#mistake
#mom
#naill
#nats
#need
#new
#nick
#night
#nope
#norman
#nunca
#old
#one
#order
#out
#pain
#panda
#pasta
#phone
#pig
#play
#pleasures
#pocket
#police
#pop
#potter
#power
#prison
#psych
#race
#rain
#rand
#random
#randoms
#ranodm
#red
#remember
#right
#rik
#rise
#road
#ron
#rose
#rough
#rude
#run
#runaway
#sad
#saved
#school
#shane
#shawn
#sick
#sing
#slayers
#sleep
#song
#speak
#speech
#starve
#stay
#strong
#sweater
#tags
#tan
#tears
#teddy
#teen
#temper
#thanks
#them
#theory
#thrive
#tight
#tough
#tube
#ugh
#ugly
#usa
#voice
#walking
#war
#weather
#win
#winner
#wolf
#women
#work
#wrong
#xxxxxxxx
#young
Slow-wave sleep appeared about 180 million years ago. REM sleep is believed to have appeared 50 million years later. Humans most likely developed a monophasic sleep/wake pattern in the Neolithic period (10,000 B.C.).
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