At fifty, many of us take stock of our lives.  We can look back on careers, friends, and family that we are proud of, but what do we want to do with our middle years?  How can we make the most of our lives?  Perhaps the most overlooked aspect of our later years, as well as the one that may have the greatest impact on our overall well-being, is our health and fitness.  How, then, can we best ensure our health and fitness into our mid and later years?  Exercise! (…)