Use of a bicycle provides cardio to augment my amateur bodybuilding at age 76. Years of both activities probably had something to do with a good EKG and good echocardiogram. But more important, when I see men with big round bellies, something I protect myself against through structured exercise and diet, I know I would not want to live if I had to have that kind of a body. In the unlikely event the way I live would shorten my life I would still do it. Regular resistance training itself reduces the risk

of Alzheimer's by 80% and belly fat increases the risk. I'll take a heart attack with ten years subtracted from my life over rotting away in a nursing home.