Melatonin What it is: : Melatonin is a hormone that your brain already produces and secretes to regulate sleep.
The pineal gland, which regulates body rhythms, secretes a hormone called melatonin during the night.
For example, it secretes larger amounts of cytokines, molecules that carry chemical signals between cells.
Melatonin What it is: : Melatonin is a hormone that your brain already produces and secretes to regulate sleep.
