A person who supports a popular craze with exaggerated zeal.

Faulty nutrition.

A chronic disturbance of mood involving either depressed mood or loss of interest, but not of sufficient severity and duration…

An emotional response to an antipsychotic tranquilizer characterized by a drop in mood or slowed thought process.

In genetics, a situation that tends to be harmful to the hereditary qualities of future generations, eugenic.

Homosexuals who live alone, have many sexual contacts, and encounter many adjustment problems.

A part of a social system that disrupts the operation of another part of that system.

Malfunction.

Acalculia.

An ego defense mechanism.