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What are the signs of seasonal affective disorder?

Dr. Mehmet Oz, MD
Cardiology (Cardiovascular Disease)

Seasonal Affective Disorder (SAD) is a mood disorder that causes depression to come on during certain seasons, typically during the winter. Those who suffer from SAD have many of the normal signs of depression: sadness, anxiety, irritability, loss of interest in normal activities, inability to concentrate, and withdrawal from social activities. Moreover, they often have symptoms such as extreme fatigue, lack of energy, increased appetite and craving for carbohydrates, and weight gain.

Charles J. Sophy, MD
Adolescent Medicine

The signs are similar to those of depression such as sleep and/or appetite changes, mood and anxiety changes, and possible disturbance of sexual desires. These symptoms usually come at the same time each year.


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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.