Sunlight is a natural, healthy way to get sleep.
Research shows that levels of serotonin, which is a neurotransmitter that controls appetite, sleep, memory, and mood, are lower during the winter than the summer. (Baker Heart Institute in Melbourne Research).
Sunlight turns off melatonin, which is a hormone produced in the brain to make you sleepy. It is secreted by the pineal gland. As night approaches, melatonin levels rise, since it has replaced serotonin. Melatonin lowers the body temperature, which makes the body into a drowsy state.
Going outside, under the sunlight everyday, can help tell your body to wake up. Daily exposure to sunlight can help your body regulate its circadian rhythm, which is the 24/7 cycle that maintains processes in the body.
As a person gets older, the nighttime melatonin levels decrease causing short-sleeping times. This lack of sleep can cause diseases like Alzheimer’s.
So, go outside and get your Vitamin D!