Bright Ideas for Treating the Winter Blues

It's that time of year when darkness descends like a heavy blanket beginning in mid-afternoon in much of the country. For some people, it also brings a desire to stay in bed and wait for spring.
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Light therapy, using beams many times more intense than normal light, is the most common treatment. But a host of new therapies—from simulating dawn in your bedroom and changing your thoughts through cognitive-behavioral therapy to taking mega doses of vitamin D—are having success in some patients.