Never-Ending Winter: Chronic Depression
September 15th 2007Mood disorders are among the most prevalent forms of mental illness. Serious depression is especially common; based on a face-to-face survey conducted from December 2001 to December 2002, the past-year prevalence rate of clinically significant major depressive disorder (MDD) was estimated to be 6.6%, affecting at least 13.1 to 14.2 million Americans.