Melatonin is secreted from the pineal gland in the brain. It has been called the hormone of darkness because the maximum secretion of this hormone occurs at around midnight. This hormone has two functions. It can act as an antioxidant. Thus, it can help to control the amount of free radicals produced in the body. It also promotes sleep. The secretion of melatonin is inhibited by light. Therefore, it is better to switch off all lights in the bedroom before going to sleep.
Several studies have shown that melatonin supplements are better than sleeping pills in producing normal sleep. However, melatonin supplements suffer from some drawbacks.
It may produce daytime sleepiness in some individuals. This will affect performance at workplace. Affected people should avoid driving and handling heavy machinery.
Some individuals who take melatonin supplements tend to indulge in sleep walking.
It tends to affect the efficacy of medicines taken for other problems.
It may produce headaches and occasionally, nightmares.
Sometimes it may produce abdominal discomfort.
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