I was losing the argument. According to my neighbor, it was possible to take serotonin as a supplement and not only lose weight but also vanquish the symptoms of stress, PMS and menopause. "Just go to the website and you will see all the testimonials from people who have been helped by the serotonin supplement," she told me, referring to a serotonin supplement-based weight-loss program. Pointing out to her that taking serotonin as a pill was useless because serotonin in the body never...

