i mean why cant it be morning?
2007-06-14 05:28:45 · 5 answers · asked by itin 1 in Health ➔ General Health Care ➔ Other - General Health Care
It's called circadian rhythms, and it is a good question.
Just as bats are night animals and cows are day animals, humans are day animals. We are tuned to wake within a certain amount of time after it gets light, and to sleep better when it is totally dark.
We can change this for night work, etc., but it is hard on our bodies because we want to sleep in the dark and work in the day.
2007-06-14 06:01:23 · answer #1 · answered by nora22000 7 · 0⤊ 1⤋
I tend to fall asleep at night because i'm tried and it's dark.
2007-06-14 12:36:24 · answer #2 · answered by protostars2000 2 · 0⤊ 0⤋
people who work night shifts fall asleep in the morning!!!!
we could to if we worked at night
the body needs to get at least eight hours of sleep to function properly
2007-06-14 12:54:59 · answer #3 · answered by mcruz927 3 · 0⤊ 0⤋
well first of all, its kind of human habit by now.. we work in the day and we go to sleep at night.. (although of course some people do the opposite) but there is possibly a chemical which helps us to do so, called melatonin. Its in the pineal gland in your brain, and its thought to be released in the dark and makes us sleepy and helps with sleep cycles.
2007-06-14 12:37:21 · answer #4 · answered by Anonymous · 0⤊ 0⤋
suprachiasmatic nucleus
~edit
Whoever gave me a thumbs down is a real wanker.
2007-06-14 12:37:29 · answer #5 · answered by pm 5 · 0⤊ 1⤋