Generalized anxiety disorder is characterized by excessive worry about 2 or more life circumstances for a period of 6 months or longer. Biological and genetic factors may combine with stress to produce psychological symptoms.
Review Date 3/26/2018
Updated by: Fred K. Berger, MD, addiction and forensic psychiatrist, Scripps Memorial Hospital, La Jolla, CA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.