Millions of people with seasonal affective disorder (SAD), a mood disorder associated with depression and related to seasonal variations of light. Discovered 35 years ago, the condition affects over 4% of the population in the United States and upwards to 20% of Canadians at some point in their lives. Only about 1.5% of Floridians experience the condition. Use of a light box (easily purchased online) to increase the amount of daily exposure to light has been a recommendation of the American Psychiatric Association for some time now, but don't rule out talking to a counselor. Researchers at the University of New Hampshire found that cognitive-behavioral therapy (a practical counseling approach to personal change) helped defuse and overcome negative thoughts that fuel depression. Counseling teaches problem-solving skills and different ways to think, and it can prepare you to act and respond to similar problems in the future. A light box does help about 70% of people over SAD, but if you don't get the relief you want, don't rule out some old-fashioned talk therapy.