Why does your body fall asleep

Health related question in topics Conditions Illness .We found some answers as below for this question “Why does your body fall asleep”,you can compare them.

Your limbs fall asleep due to prolonged amount of pressure applied to area,cutting off communication of nerve endings to the brain [ Source: http://www.chacha.com/question/why-does-your-body-fall-asleep ]
More Answers to “Why does your body fall asleep
Why do parts of your body fall asleep?
http://wiki.answers.com/Q/Why_does_my_leg_or_other_limbs_fall_asleep
Your limbs fall asleep because of the lack of blood flow through them. Your limbs fall asleep because of the lack of blood flow through them.
Why do your body parts fall asleep?
http://answers.yahoo.com/question/index?qid=20070414184525AAvz1O7&show=7
Personally I think those parts are just bored.
How does the body fall asleep?
http://answers.yahoo.com/question/index?qid=20090604194553AAbL1Q6
・ 1. N1 Sleep Phase: As soon as you close your eyes, your brain emits a special form of waves called theta … ・ 2. N2 Sleep Phase: Sleep spindles appear and you are totally oblivious to external environment. ・ 3. N3 Sleep Phase: Delta wave…

Related Questions Answered on Y!Answers

Why does your body fall asleep, like your feet and stuff?
Q: I really wanna know.
A: lack of good flow and circulation
Why is that that sometimes right before you fall asleep your body does that “jump” thing or twitch?
Q: Some of yall know what Im talking about. Sometimes your body jerks real quick, enough to wake you a bit. What does this mean?Thanks to all you guys that answered and gave your own cute little experiences as well :)Though I was trippin or something lol!
A: scientists are not exactly sure why, but the theory is that as you drift off, your body goes through some physiological changes to prepare for a few hours of restoration. Your breathing rate changes. Your temperature may change. And your muscle tone changes, too. Hypnic jerks, the theory goes, may just be a byproduct of that muscular transition
why do parts of your body fall asleep and why does it feel tingly?
Q:
A: because blood circulation to that part is cut off to that part of your body. it may feel cool but it’s really not good for you….
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