What does serotonin mean?
nounA neurotransmitter that plays a key role in regulating mood, appetite, and sleep. It is often referred to as a 'feel-good' hormone due to its association with feelings of happiness and well-being.
Example
"The antidepressant medication increased the levels of serotonin in her brain, helping to alleviate her symptoms of depression."
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.