Symptoms of SAD are a little different from depression.

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

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.

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

Exercise, eating right, and adhering to a schedule helps.

ECT is not considered for garden-variety depression. If it's more refractory, if other treatments have failed or it's suicidal depression and you don't have time to wait around to see if a medication is going to work, it's considered the gold standard of treatment.