Researchers have identified two gut bacteria that can produce serotonin, a key chemical that regulates bowel movements. In experiments with mice lacking serotonin, the microbes boosted serotonin ...

Serotonin, one of the major chemical messengers serving neuronal communication, is usually associated with the direct regulation of affective states and mood in general. But growing evidence suggests ...

If you’ve heard of two of the brain’s chemical neurotransmitters, it’s probably dopamine and serotonin. Never mind that glutamate and GABA do most of the work — it’s the thrill of dopamine as the ...

Using light stimulation and MRI, scientists compared the effects of stimulating the brain’s serotonin center in awake and anesthetized mice, showing a clear difference in activation levels between the ...

An individual's nerve cells produce a special chemical called serotonin. It is responsible for sending signals from one nerve ...

Serotonin is often described as the happiness chemical because of its well-known role in regulating mood. However, recent research suggests this familiar molecule may play an unexpected role in cancer ...

If you've heard of two of the brain's chemical neurotransmitters, it's probably dopamine and serotonin. Never mind that glutamate and GABA do most of the work - it's the thrill of dopamine as the ...

Serotonin has "rock star" status as one of the most famous neurotransmitters known to man. Scientists and laypersons alike recognize serotonin for its vital role in human cognition and mental health.

Serotonin reuptake inhibitors (SRIs) are a class of drugs that affect the brain’s serotonin system, and doctors most commonly prescribe them as antidepressants. SRIs increase the levels of serotonin ...

Prozac and Zoloft are similar selective serotonin reuptake inhibitors (SSRIs) prescribed for anxiety and depression. Prozac is FDA-approved for depression or bulimia, while Zoloft is FDA-approved for ...