Vitamin B - 6 is partly responsible for making serotonin — if we are deficient in it then we're gonna have mood problems. (nicolejardim.com)
One of the side effects of these drugs is they reduce the body's natural ability to make serotonin on its own. (everywomanover29.com)
Winter triggers cravings for sweet carbs because diminished sunlight during the season makes serotonin in the brain less active and triggers the release of melatonin. (blog.defensesoap.com)