Although serotonin is well known as a brain neurotransmitter, it is estimated that 90 percent of the body’s serotonin is made in the digestive tract. In fact, altered levels of this peripheral serotonin have been linked to diseases such as irritable bowel syndrome, cardiovascular disease, and osteoporosis. The opensource study published in the journal Cell, shows that certain bacteria in the gut are important for … Continue reading Researchers identify gut’s role in peripheral serotonin production and shaping the nervous system.