Severely disturbed sleep patterns may be an early indicator of the risk of developing bipolar disorder (BD) and may allow early intervention, new research shows.Speaking here at EPA 2012: 20th European Congress of Psychiatry, Phillip Ritter, MBBS, of the Clinic and Polyclinic for Psychiatry and Psychotherapy at University Hospital Carl Gustav Carus of the University of Dresden in Germany, said that sleep is highly altered in mania and depression and is the most common prodromal symptom of mania in patients with BD. Studies have shown that these...