Serotonin is a chemical produced mostly in our digestive tract. 1 Despite its humble beginnings in the gut, serotonin has the important job of deciding which brain cells to "turn off" (inhibit) during ...

Serotonin is a naturally occurring monoamine neurotransmitter that carries signals between nerve cells throughout your body. It plays an important role in various brain and body functions, including ...

Serotonin deficiency is linked to pain, fatigue, depression, and more Serotonin is a neurotransmitter, a chemical messenger that helps with regulating mood. It sometimes acts like a hormone as well.

You’ve probably heard about serotonin, the molecule known as the “happy hormone.” It’s widely thought to play a role in mood, sleep, learning, memory, digestion, and more—in fact, scientists think it ...

In our day-to-day lives, we’re constantly making a slew of decisions from immediate matters to prospects on the far horizon. But the evolutionary nuts-and-bolts of how our brains weigh these numerous ...

In 2023, an estimated 11.4% of adult Americans took antidepressants. Here's how the class of medication can help depression symptoms.