|Is he suffering from a psychiatric disorder?|
One psychologist, Richard Bentall, however, proposed in 1992 that happiness, or, as he proposed it to be called, "major affective disorder, pleasant type", should be classified as a psychiatric disorder.
"Happiness is statistically abnormal, consists of a discrete cluster of symptoms, is associated with a range of cognitive abnormalities, and probably reflects the abnormal functioning of the central nervous system. One possible objection to this proposal remains--that happiness is not negatively valued. However, this objection is dismissed as scientifically irrelevant."
You can read more about why Richard Bentall thought that happiness should be classified as a psychiatric disorder here.
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