Melatonin can shorten the time of waking up and falling asleep before going to bed, improve the quality of sleep, obviously reduce the number of waking up in sleep, shorten the shallow sleep stage, prolong the deep sleep stage and lower the threshold of waking up the next morning. It has powerful time difference adjustment function. Mainly used for whitening and moisturizing cosmetics, but also commonly used in hair growth products.
The biological function of melatonin, especially as a dietary supplement, has been widely studied at home and abroad, which shows that melatonin has many physiological functions, such as promoting sleep, regulating jet lag, anti-aging, regulating immunity and anti-tumor. The health care function of melatonin at home and abroad involves regulating endocrine (inhibiting ovulation), protecting encephalitis virus infection, reducing post-infection mortality, treating AIDS and protecting cardiovascular system.
Extended data:
On rainy days, melatonin, a special substance in the human body, will be secreted much more than usual, and its content in the body will change sooner or later, with more secretion at night and less secretion during the day. On rainy days, when the sky is dark and the light time is insufficient, melatonin will be secreted much correspondingly, so it is not surprising that people are tired.
Melatonin has obvious antagonistic effect on peroxidation caused by exogenous poisons (such as paraquat) and tissue damage caused by generated free radicals. Melatonin can also reduce the content of LPO in the brain, and its effects in different areas of the brain, such as cerebral cortex, cerebellum, hippocampus, hypothalamus and striatum, are basically the same, and all of them are dose-dependent.
References:
People's Network-What's the matter with being sleepy on cloudy days? Experts tell you that melatonin is up to something.