Well, This time last year I pontificated on how to stay thin - calories in vs calories out. Exercise more and eat well. I had it right I am afraid. With the undertaking of babysitting 2 days a week starting in January of 2009 I managed to gain 10 lbs this year. While I did burn an extra 125 thousand calories on the Lifecycle and walking I walked Scout and exercised less on over 100 days resulting in a reduction in calories burned of almost 100 thousand vs 2008. The body does try to regulate it's weight. In theory I should have gained a lot more weight - it took 10,000 calories for each extra pound gained and since I only gained 4 lbs of fat each lb of fat required 25,000 fewer calories burned over the course of the year. Unfortunately, as all dieters know, that same math will work against my losing the weight gained.
I have to say I certainly don't regret the babysitting - Lyla is AWESOME. I do need to get my act together in 2010 and get the exercise back up where it needs to be. Since Lyla is going to be an outdoor fan I can walk with her instead of Scout on babysitting days and there is a nice exercycle at Lyla's house.
We will have to see how I have done this time next year.