2006-12-19 03:25:36 · 7 answers · asked by Sweety L 1 in Pregnancy & Parenting ➔ Newborn & Baby
That question cannot be answered because we do not know WHY we sleep. There are proposed theories but we do not know for sure. Since we do not know why we sleep we cannot answer why we cannot sleep after sleep. The simple answer would be because the “cause of sleep is negated.” But we do not know the cause of sleep.
2006-12-19 03:33:17 · answer #1 · answered by doctorhelp 2 · 0⤊ 0⤋
Sleep reduces your stress and makes you relaxed.The absense of stress is a very important factor which does not allow the brain to initiate the sleep.
If you are looking for a very detailed answer:
The cycle of sleep and wakefullness is controlled by parts of the brain-hypothalamus being the most important part.
This part of brain contains theBiological Clock of the human body.
Once you have completed your sleep,the excitatory neurotransmitters molecules in the brain have been replenished* and they indirectly maintain wakefulness.
*Those excitatory molecules were used up in times of stress.
2006-12-19 11:50:42 · answer #2 · answered by Rohan 2 · 0⤊ 0⤋
We sleep as a rule by habit or when we need it.
After sleeping most people do not need sleep and cannot sleep.
2006-12-19 13:12:09 · answer #3 · answered by minootoo 7 · 0⤊ 0⤋
well , this is a good question. as , our body has already had enough of sleep , so it's not ready for another session of sleep.
got it????
2006-12-23 01:56:26 · answer #4 · answered by Anonymous · 0⤊ 0⤋
because your mind and body are not tired and it is not ready for rest, it is all rested up.
2006-12-19 11:33:12 · answer #5 · answered by Anonymous · 0⤊ 0⤋
why we cannot eat after eating sufficient food.
2006-12-20 05:21:16 · answer #6 · answered by ritu 2 · 0⤊ 0⤋
because of toilet problem?
2006-12-19 11:57:07 · answer #7 · answered by meenakshim 3 · 0⤊ 0⤋