Is generalized anxiety disorder a mental disease?

Yes.: Generalized anxiety disorder refers to a persistent pattern of worrying about a variety of real or imagined possible bad events that can occur to the point that it interferes with day-to-day functioning. It is quite common, often runs in families, and can be surprisingly debilitating. It also it quite responsive to various treatments, both talk therapies and medications.

Yes: Generalized anxiety disorder (gad) is global worry (about everything) all day everyday for 6 months or more causing decreased function in life activities (work, school, relationships, etc). There are effective medication and therapy treatments for gad.

In short, yes,: Gad is a listed illness with defined criteria according to the diagnostics and statistics manual of mental illnesses.