Back Mood Disorders There are many mood disorders, sometimes called affective disorders - medical conditions that are associated with fluctuations in the chemistry of the brain and body - that require the clinical care of a psychiatrist or other mental health professional. Listed in the directory below are some, for which we have provided a brief overview. Overview of Mood Disorders Major Depression Manic Depression / Bipolar Disorder Dysthymia Seasonal Affective Disorder Depression and Suicide