Melatonin can shorten the time it takes for people to fall asleep and improve sleep quality. For insomnia sufferers, melatonin can alleviate insomnia symptoms. As we age, especially after age 35, the body's own melatonin production decreases significantly, by an average of 10-15% every 10 years, leading to sleep disorders and a series of functional imbalances. The decline in melatonin levels and reduced sleep are important indicators of brain aging. Melatonin has significant antioxidant properties. It is a natural hormone that helps eliminate free radicals in the body, fights oxidation, protects cell structure, and slows down aging.