Why do I sleep better with light on?
When we see light, the signal travels through the eye to an area of the hypothalamus that controls melatonin release, the hormone necessary to help you sleep.
Then, in the evening when the sun begins to set, the brain starts to release melatonin, so that you’ll be ready to sleep in about two to three hours.
What happens if you sleep with light on?
It may be hard to believe, but sleeping with the lights on can increase your chances of getting cancer. Women who are exposed to light during the night may have a decreased amount of melatonin, which in turn weakens the body’s ability to ward off cancer cells.
Is it harmful to sleep with lights on?
Falling asleep with the TV on may ward off the bogeyman, but research suggests that, over time, too much light at night could interfere with healthy sleep, possibly increasing your risk of sleep disorders and other health problems.
Which light is best for sleeping?
The answer will surely surprise you! The hamsters exposed to red light at night had significantly less evidence of depressive-like symptoms and changes in the brain linked to depression, compared to those that experienced blue or white light. However, total darkness at bedtime is still best for sleep.