January 18, 2010 — Individuals with treatment-resistant depression tend to have the G/G genotype associated with higher levels of 5-HT 1A autoreceptors, and turning off some of those autoreceptors ...

DURHAM, N.C. -- Researchers at Duke University Medical Center have provided the first direct evidence in mice for the role of an enzyme that specifically controls the production of serotonin in the ...

We’ve evolved enough as a species to know that too much of a good thing is actually a bad thing — even excessive amounts of water and exercise can have adverse effects. But serotonin? The hormone and ...

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.

A: Foods rich in tryptophan, such as eggs, cheese, salmon, tofu, nuts, and seeds, may help support natural serotonin production in the body. A: Tryptophan is an essential amino acid that the body uses ...

Scientists from Sweden’s Karolinska Institutet have discovered a new mechanism to help illustrate the rapid antidepressant qualities of ketamine. The large study imaged patients with ...

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 ...

A type of drug already taken by more than 8 million people in the UK could help the immune system fight cancer and shrink tumours, a study finds. The widely used class of antidepressant - selective ...

Not all stress is bad, but sometimes, stress can spiral out of control. Chronic, intense stress can pave the way to depression — a connection that’s both logical, yet biologically perplexing. It makes ...

NEW YORK (January 13, 2010) – An excess of one type of serotonin receptor in the center of the brain may explain why antidepressants fail to relieve symptoms of depression for 50 percent of patients, ...

First, a quick refresher on serotonin. It’s a critical chemical that helps our brain communicate with the rest of our body, including our central nervous system, and plays a role in numerous body ...