Melatonin Roles in Sleep

The available research seems to indicate that melatonin does help with sleep cycles, particularly for the jet-lagged or shift workers whose circadian rhythms are thrown off by the transition from a “normal” sleeping schedule by travel or employment.

When taken for short periods, melatonin has been found to be more effective in controlled studies using placebos in reducing time to fall asleep, increasing the number of sleeping hours and boosting daytime alertness. The changes aren’t drastic, though – research has shown that the time to fall asleep is only changed by minutes, not hours.

When studies have given healthy people melatonin in a wide range of doses, the results haven’t shown much promise in those under age 55. However, for the seniors in the group, melatonin did help that group fall asleep faster, sleep more soundly and improved daytime alertness levels. For those with insomnia, that’s a definite quality of life improvement.

Other Uses of Melatonin

Beyond sleep issues, melatonin has been found to help with other body functions. Here are some issues that have been studied.

Heart disease – Some studies have shown melatonin to have anti-inflammatory and protective effects on the heart. It may lower blood pressure and improve cholesterol levels, but the direct link between dosage and benefits has not been established.