0 Melatonin

Melatonin is a  natural sleep-inducing hormone secreted in the pineal gland, a pea sized gland in the middle of the brain. It is actually produced by pineal enzymes that are respectively activated and depressed by darkness and light. As a result, the pineal secretes melatonin at night, thus promoting sleep. As a natural sleeping aid, Melatonin supplements are now commonly used to combat jet lag and insomnia, and to alleviate depression.
Melatonin was also found to be a powerful antioxidant, as such it boosts ,the immune system by stimulating the production of immune cells protecting the DNA and preventing the degenerative diseases of ageing, such as heart disease and cancer