It’s not just cold outside, but the days are also short. So it’s not unusual to have a case of the winter blues. But if you’re really feeling down and depressed, you could be suffering from seasonal affective disorder (SAD).
UPMC psychiatrist Dorothy Sit, M.D., notes that while early evidence is promising, we still don’t know enough about the effectiveness of light therapy for patients with bipolar disorder. She and her colleagues are conducting a study examining the antidepressant effects of light therapy to improve mood symptoms and circadian rhythms in depressed women and men (ages 18-75) with bipolar disorder.