Serotonin syndrome (serotonin toxicity) is a potentially dangerous condition that arises from excessive serotonin levels in the body. It’s often due to medications or drug interactions and can affect ...

Serotonin sends signals between nerve cells. It may help regulate many body functions, including mood, bowel movements, and sleep. Some medications help boost serotonin levels and improve mood.

Medically reviewed by Elizabeth Barnes, RDN Key Takeaways Talk to a doctor before taking supplements for serotonin, as some can interact with other drugs.St. John's Wort can increase serotonin but may ...

When it comes to chemicals that affect our mood, most of us are the most familiar with serotonin. The neurotransmitter is responsible for dictating everything from our happiness to our energy levels ...

New research from the Institute of Psychiatry, Psychology & Neuroscience (IoPPN) at King's College London has provided the ...

Comparing PET scans of more than 90 adults with and without mild cognitive impairment (MCI), researchers say relatively lower levels of the so-called 'happiness' chemical, serotonin, in parts of the ...

Serotonin is nature's own appetite suppressant. This powerful brain chemical curbs cravings and shuts off appetite. It makes you feel satisfied even if your stomach is not full. The result is eating ...

Serotonin is a brain neurochemical that is synthesized directly within the brain from its precursor, a monoamine amino acid called tryptophan. It modulates neural function, playing a vital role in a ...

Nace Golding, a neuroscientist at the University of Texas at Austin, and his team were surprised to find that serotonin also regulates the sensitivity of auditory neurons, brain cells involved in ...

A new study in mice strongly suggests that serotonin and drugs that target serotonin, such as anti-depressants, can have a major effect on the gut's microbiota -- the 100 trillion or so bacteria and ...