Which supplement is taken to help with insomnia and jet lag?

Melatonin is a hormone that the body produces naturally, primarily in response to darkness, and is crucial in regulating the sleep-wake cycle. Its effectiveness as a supplement has been well-documented in helping individuals falling asleep and managing sleep patterns, especially in cases like insomnia or jet lag, where the body’s natural circadian rhythms are disrupted.

When taken as a supplement, melatonin can help signal the body that it is time to sleep, making it particularly beneficial for those traveling across time zones or experiencing difficulties sleeping. It facilitates the body's adjustment to a new sleep schedule, helping to alleviate the symptoms associated with both insomnia and jet lag.

In contrast, grape seed extract, ginseng, and green tea have different primary uses or benefits. Grape seed extract is often recognized for its antioxidant properties, ginseng is commonly associated with energy-boosting and stress relief, and green tea contains caffeine and is known for its potential health benefits, such as enhancing metabolism. These are not primarily linked to sleep regulation or the relief of insomnia and jet lag, which underscores why melatonin is the preferred choice for those specific issues.