Serotonin is often referred to as the "happiness molecule." It plays a critical role in affecting mood levels and is also a neurotransmitter that sends signals within the brain and the body.

Dopamine and serotonin are both neurotransmitters. Neurotransmitters are chemical messengers used by the nervous system that regulate countless functions and processes in your body, from sleep to ...

When a person feels pain and doctors can’t figure out why, they often tell the person that their symptoms are psychological. A recently discovered biological cause could change the narrative. Share on ...

Serotonin sends signals between nerve cells. It may help regulate many body functions, including mood, bowel movements, and sleep. Some medications help boost serotonin levels and improve mood.

Serotonin and vitamin D have been proposed to play a role in autism, however, no causal mechanism has been established. Now, researchers show that serotonin, oxytocin, and vasopressin, three brain ...

Serotonin is nature's own appetite suppressant. This powerful brain chemical curbs cravings and shuts off appetite. It makes you feel satisfied even if your stomach is not full. The result is eating ...

The placenta has long been thought to produce serotonin during pregnancy. But in a new study, Yale researchers shatter the deep-rooted hypothesis — and show that the placenta doesn’t produce serotonin ...

Serotonin syndrome occurs when a person takes drugs that cause excess levels of serotonin to accumulate in the body. Symptoms can include agitation, a dry mouth, dilated pupils, confusion, and more.

Nicole McDermott has worked in the creative content space for the last decade as a writer, editor and director. Her work has been featured on TIME Healthland, Prevention, Shape, USA Today, HuffPost, ...