Serotonin is a chemical that is required for a variety of functions in the body. It is also called the "happy chemical" because it contributes significantly to making you feel good and making your mood happy. The scientific name of serotonin is 5-hydroxytryptamine or 5-HT. It is mainly found in the brain, intestine and platelets.
Serotonin is used to send messages between nerve cells. It also activates a certain type of muscle called "smooth muscles". Apart from this, it is also considered necessary for your appetite, emotions and memory etc. Serotonin is also necessary to make the mood good. On the other hand, if its level decreases, then you start getting depressed. It explains in detail what serotonin is, its benefits, functions and what is serotonin syndrome.
(Read more - Serotonin Deficiency)