serotonin
/ˌsɛrəˈtoʊnɪn/
noun
- A chemical in the brain and body that helps regulate mood, happiness, sleep, and appetite.
- Exercise can boost your serotonin levels and improve your mood.
- Many antidepressants work by increasing the amount of serotonin in the brain.
- Eating foods rich in tryptophan, like turkey, can help your body produce serotonin.