melatonins
Melatonin is a hormone produced by the pineal gland in the brain. Its primary role is to regulate the body's circadian rhythms, which are the natural sleep-wake cycles. Melatonin production is influenced by light exposure; it increases in darkness and decreases in light. This hormonal signal helps the body prepare for sleep.
The body produces melatonin naturally, but it can also be taken as a dietary supplement. Melatonin supplements
The safety and efficacy of long-term melatonin use are still being studied. Common side effects can include