The winter blues or blahs... I've found light helps... One winter I even set a lamp on my night table to a timer same as my alarm clock... so that it was light in my room... made getting up in the morning easier. I have also used tanning booths in the winter... something about the heat and the tan that make me feel better... now I'm more worried about my skin's health though. Google it, I'm sure you will find tons of suggestions.