chemical imbalance
Noun
Meaning
Used other than figuratively or idiomatically: see chemical, imbalance.
(euphemistic) Mental illness.
Source: en.wiktionary.orgRelated terms
Examples
There's a new science out called orthomolecular medicine. You correct the chemical imbalance with amino acids and vitamins and minerals that are naturally in the body.
I have a chemical imbalance that, in its most extreme state, will lead me to a mental hospital.
There is no such thing as a chemical imbalance in a body.