Seasonal affective disorder (SAD) has been compared to hibernation, which may be thought of as the biologic correlate of wintertime SAD. People with SAD are not typically sad; they simply feel tired and less interested in things. Many patients do not realize that they have depression because they do not feel sad. However, their inability to feel pleasure (anhedonia) and increased sleep and appetite meet clinical depression criteria. How much do you know about SAD? Test yourself with our short quiz.
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Cite this: Stephen Soreff. Fast Five Quiz: Are You Prepared to Confront Seasonal Affective Disorder? - Medscape - Nov 23, 2016.