A sample of the substance melatonin (Melatonin), which is a substance that plays a major role, such as helping to reduce heart rate and blood pressure, and more importantly, this substance has a duty to regulate sleep.
Examples of melatonin (Melatonin), a substance that plays a major role as well. Reduce heart rate and blood pressure and vital substances are also responsible for controlling sleep, too.
Samples of melatonin (Melatonin). A substance that plays the most important role as well. Reduce the heart rate and blood pressure, and most importantly, this compound also has a control function to sleep.