Ahem...from the URL I mentioned earlier: 'Talk Therapy More Effective Long Term Treatment For SAD Than Light Therapy, Study Finds. 'Only six percent of the CBT participants met the criteria for depression at the one-year follow-up, while 40 percent of light-exclusive participants met the depression criteria during the winter season of the next year. 'The majority of light therapy users reported having a hard time adhering to the recommended twice-daily 45-minute light box sessions at the end of six weeks of study treatment. 'Rohan's research offers compelling evidence that CBT talk therapy by itself may be an effective treatment for SAD and may offer some long-term benefits over light therapy.'