seasonal affective disorder https://www.malacards.org/card/seasonal_affective_disorder UMLS:C0085159 SCTID:247803002 A syndrome characterized by depressions that recur annually at the same time each year, usually during the winter months. Other symptoms include anxiety, irritability, decreased energy, increased appetite (carbohydrate cravings), increased duration of sleep, and weight gain. sad (seasonal affective disorder) can be treated by daily exposure to bright artificial lights (phototherapy), during the season of recurrence. SADS ICD9:296.99 MEDGEN:38984 sad MONDO:0000694 MESH:D016574 DOID:0060167 depressive disorder