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.

Cognitive deficits accompany mood disorders and other psychiatric conditions, often with debilitating effects. Limited treatments currently exist, but studies in animals and humans have pointed to ...

A collaborative study involving Baylor College of Medicine, the University of Cambridge and the University of Exeter Medical School reveals a new gene associated with obesity and maladaptive behavior.

Amy Mackelden is a freelance writer living with multiple sclerosis, ADHD, PCOS and anxiety. She's written about health and wellness for Healthline, The Paper Gown, SingleCare, the MS Society and ...

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 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.

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 ...

Our lives are filled with binary decisions – choices between one of two alternatives. But what's really happening inside our brains when we engage in this kind of decision making? A University of ...

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, ...

This post was written with a contribution from Margaret Heaton-Ashby, LMFT. Your nerve cells are constantly in a state of production to create the chemical serotonin, which is made from the essential ...