Half asleep when lights are on?

Question

Is it true that when you have your lights on at night when you sleep, you're only half asleep? I've heard something about your biological clock gets thrown off while you sleep with your lights on.

Answer 1

No, it's not really true. You can sleep just fine in lighted conditions if you're sleepy enough. If you're not particularly sleepy, it may be hard to *fall* asleep in a lit room, but once you're asleep, you'll sleep just fine.

In very young children, there is some evidence that nearsightedness may be aggravated by even a dimly lit room at night -- but this doesn't apply to adults.

Answer 2

our body responds to day n night cycle
mst hv herd of jet lag when u travel arnd the globe
pineal gland releases hormones which follows rhythm

Answer 3

i doubt it