Fight seasonal affective disorder with this new tracker

Seasonal affective disorder (SAD) affects about one in 10 Americans each winter, according to a study by the National Institutes of Health. One treatment for SAD involves increasing your light exposure — but it can be difficult to tell how much you’re getting each day. Jacqueline Olds, associate clinical professor of psychiatry, and Richard Schwartz, associate clinical professor of psychiatry, helped deveolp a light-tracking device for consumers.

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