Involutional Melancholia

Involutional melancholia is an early psychology term that was used to describe negative symptoms that appear in late adulthood (which was considered to start in the 50s). Symptoms are depression, anxiety, agitation, restlessness, weight loss, and hypochondriasis. This term was first used in the early 1900s and is not acknowledged by the current DSM as a disorder. No one would be diagnosed as this today.