Melatonin, the sleep hormone is an all-natural nightcap secreted by the pineal gland located in the centre of the brain. In essence, this marvel hormone is a button for one’s circadian rhythm, i.e. the internal biological clock.
However, this hormone regulates not only sleep-week cycle of humans but also play imperative role in promoting good health by boosting the immune system.
But, when it comes to a human body, everything has its downfall; just like the secretion of melatonin. Production of melatonin level declines with the process of senescence. Therefore, immunity of the old people tends to weaken gradually.
Considering this crisis, doctors advice people to buy melatonin supplements to improve their immunity.