Do you ever feel sluggish and slightly down as the temperatures drop and the days grow shorter? If you feel less optimistic, have less energy, and feel less engaged in life during the winter months, you may have winter blues syndrome. The winter blues involve a shift in mood during the colder, darker months of the year. Winter blue syndrome is a milder form of depression called seasonal affective disorder (SAD). Seasonal affective disorder is more than the winter blues. Individuals with SAD...