<unk>  <unk> , also known as winter depression, is a form of depression that is related to changes in the season. In the most common form of<unk> , an individual experiences more frequent depressive periods between the late fall and early spring, with a return to normal baseline mood in the late spring and summer months. Less commonly, patients may experience depressive episodes in the summer; this type of disorder is known as reverse<unk>  (Reverse-SAD). The management options for<unk>  are phototherapy, medications, psychotherapy, or a combination of these.
Seasonal affective disorder
Major depressive disorder
Post travel depression
Depression 
Premenstrual syndrome
Postpartum depression
Post stroke depression
Melancholic depression