Scientists have studied the main source of serotonin in the brain -- the dorsal raphe nucleus (DRN). By studying how activating the brain's 'serotonin center' affects awake animals for the first time, ...

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.

A recent small study analyzes how the psychedelic drug LSD reshapes brain activity. The research shows that the substance ...

Loss of the "happiness" brain hormone serotonin might play a role in the decline of brain function as a person ages, a new study reports. People with mild cognitive impairment (MCI) had up to 25% ...

A collage of a ball-and-stick model of a serotonin molecule, a sad-looking person, some drug capsules, and a brain Credit: Shutterstock/Madeline Monroe/C&EN For decades, doctors, neuroscientists, and ...

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 ...

Researchers at Baylor College of Medicine, the University of Cambridge in the U.K. and collaborating institutions have shown that serotonin 2C receptor in the brain regulates memory in people and ...

Recent evidence suggests that a single dose of the psychedelic compound psilocybin reduces the drive to seek out rewards, ...

Scientists have uncovered evidence that serotonin, the chemical best known for regulating mood, may also speed the ...

Platelets are clot-forming cell fragments that circulate through the blood. In retrospect, they make perfect sense as the body’s serotonin truckers because they absorb the gut-derived hormone, store ...

Serotonin is a hormone and neurotransmitter—a chemical messenger that transmits signals between nerve cells in the body. Serotonin has a positive influence on the cardiovascular system and the ...

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 ...