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Scientists have learned hg ไบบeo! ใ
0 r brain acfivityใป ๆฌ
dierent kinds oใ
Et
repeated throughout the ng
During stage 1 sleep, We ้
can easily De
5 feeling. However, we ๅบ
erampler someone saysy "Are you 88Ie6P
3 deeperใ Our bodies become fy
jrains disconnect fom the outside World
about 15 minufes.
2 Wepass through stage 3 into a deep Stage 4 sleep.
9 wake up from this stateใ Our bodies need stage 4 sleep
ใฎrest and heaj. Without enough of itใ we feel tired all
day.
7 77e fnal stage is REM (rapid eye movement)
Jeep. Duzrng pjs stage, our brains become very
cgve. 7jDis seems to pe the thme when we
gtage 2 sleep
relaxed, and our
This lasts :
Our eyes do not move, and our minds are quiet. It is hard :
ene ts
Be ใ
1
15. REN
Me
mW
3 ta
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