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What is seasonal affective disorder?

Seasonal affective disorder (SAD), is another type of depression. If you have all or some of the symptoms of clinical depression and they occur only at certain times - usually in the late fall and winter - you may have SAD.

What Are the Symptoms of Seasonal Affective Disorder?

People who have seasonal affective disorder usually have these symptoms:

  • depressed mood, sluggishness, irritability, or anxiety that starts in late fall or early winter
  • sleeping for longer periods of time and withdrawing from social activities during the late fall and winter months
  • binging on carbohydrates during the fall and winter
  • weight gain during the late fall and winter months, as much as 10 to 20 pounds
  • freedom or relief from depressed symptoms with the coming of spring