My energy is totally sapped during the winter, I blame in to congress screwing with the time. If daylight savings is so great, why don't we do it all the time. I think I suffer from subsyndromal SAD.
Under the best of circumstances I have some energy but when winter hits, you might as well count me out after 6 pm. I can guarantee that I will be tired, unsocial, and not really care. This winter I am going to try to be more active and eat a healthier diet that last winter, so we will see if that helps. I am also going to open the blinds in my room so that I get some sun in the morning.
I would try some other cures, but I am to tired to put forth the effort.