With the end of 2006 a few days away many of us turn our thoughts to the New Year and seize the opportunity to rededicate ourselves to healthier habits. I personally know all too well how easy it is to stop exercising and how hard it is to start again. I also know how insidious inactivity can be. In the last month alone, I've had to tell three of my patients that they were in the earliest stages of developing diabetes. For them, the need to exercise and to pay compulsive attention to their diet ...