noun

serotonin

serotonin

Serotonin is a chemical that affects mood.

Serotonin is a chemical that affects mood.

Exercise can boost your serotonin levels.

Exercise can boost your serotonin levels.

(uncountable noun) serotonin Serotonin is a chemical that affects mood.

Synonyms: 5-hydroxytryptamine (5-HT)

From 'sero-' (serum) + 'tonin' (tone), as it was first found in blood serum and affects vascular tone.

Associate 'serotonin' with feeling 'serene' and having a good 'tone' of mood.

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