Lazy? Age? Motivation? Just what is the problem?

I think of all the birthday's the one this past January 1 might have been the most traumatic. There is just something about 62. The basic age when you can start pulling your money from those retirement accounts without penalty is one thing. (Okay, not much money left now in those retirement accounts with this economic thing stealing everything that took years to save.) But, maybe it is being qualified now for social security even though they hope we won't touch that until 70. Not sure what, or why but this past birthday seemed to drain away energy and motivation. I did have a night class and that may have been part of the reason I could not get myself to the YMCA but what about the other three nights of the week and the weekend? And, then there were the mornings. I can't remember another year that I have been four days in a row without a three to six mile walk/run. But January and February, I would awaken and turn back in. Too cold is what I said but it is never too cold in South Carolina. Now, I have four days in a row at the Y and am feeling better about things but the decision to workout is way to conscious and way too debatable in my life right now. The slacker is winning the debate and going in opposition to what is clearly common sense, basic wisdom and life skills. So, what is it -- age, laziness, motivation, or just plain stupidity that is keeping me of the streets and away from the weights?