In 1984, Dr. Norman Rosenthal and his colleagues published a seminal research paper on seasonal affective disorder (SAD), unveiling what they were convinced was

While theories linking seasonality and affective episodes date back to the time of Hippocrates, it is only recently that the idea has gained widespread acceptan

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Therese Borchard may be one of the frankest, funniest people on the planet. That, combined with her keen writing abilities has made her Beliefnet blog, Beyond B