wat is serotonine
1. Serotonin acts as type of chemical known as a neurotransmitter. It helps relay signals from one area of the brain to another. Although serotonin is made in the brain, where it performs its main functions, some 90% of our serotonin supply is found in the digestive tract and in blood platelets.t helps relay signals from one area of the brain to another. Although serotonin is made in the brain, where it performs its main functions, some 90% of our serotonin supply is found in the digestive tract and in blood platelets.