In the U.S., 7 to 10 percent of the population suffer from winter depression.

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The light box is the preferred treatment. Not any light will do; certain studies show that a specific intensity is needed.

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Symptoms of SAD are a little different from depression.

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When symptoms clearly begin to interfere with daily functions, students who are having trouble going to class and getting assignments done, they need some coping methods - counseling can help with that.

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