Reuters reports on yet another study showing just how good exercise and calorie restriction are for your health. In this case, they are shown to dramatically reduce risk factors for diabetes: "Men who restricted their calorie intake not only lost a significant amount of weight and had a nearly six percent reduction in body fat, but their insulin concentrations were also reduced by 40 percent on the glucose tolerance test." This isn't rocket science - it's just good preventative maintenance for what is, in essence, a complex machine. If you want to be healthy and active (and alive!) to benefit from the healthy life extension medicine of the future, then you have to take care of your body in the here and now.