OverviewStudies show bouts of insomnia may predispose individuals to depressive illness. The correlation between sleep disorders and mood disorders holds true across age and gender lines.
Update Date 12/20/2014
Updated by: Paul Ballas, DO, Attending Psychiatrist, Friends Hospital, Philadelphia PA. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.