SEROTONIN—OUR NATURAL ANTIDEPRESSANT Last week I posted on the hormone Dopamine (Dopamine—the Pleasure Hormone), one of four feel-good hormones that affect our mind, mood, and body. This week I’m featuring Serotonin, a hormone that acts as a natural antidepressant. For us seniors who at times experience insomnia, serotonin is additionally important because our brains need it—and dopamine—to make melatonin, the hormone that regulates our sleep-wake cycle. I’m sharing excerpts from the 2nd of Stephanie Watson’s July 20, 2021 Harvard Medical School online articles on feel-good hormones, Serotonin: The natural mood booster. Serotonin can stave off depression and provide a feeling...