Definition, Meaning & Synonyms

serotonin

Noun
/ˌsɛrəˈtoʊnɪn/
Definition
Serotonin is a neurotransmitter that plays a crucial role in regulating mood, sleep, and appetite.
Examples
  • After her morning run, she felt a boost in serotonin levels, which improved her mood significantly.
  • Researchers are studying how serotonin affects sleep patterns.
  • Low levels of serotonin are often linked to depression and anxiety disorders.
Meaning
It is often referred to as the ‘feel-good’ chemical because it contributes to feelings of well-being and happiness.
Synonyms
  • 5-hydroxytryptamine (5-HT)
  • Happy hormone
  • Nerve transmitter