Regular exercise will combat the slowing down of physical performance as you age. Keeping active as you age will help muscle function, cardiovascular fitness and improve metabolism. Starting a physical fitness regime at a younger age will lay the foundation to stay healthy and fit as you age. This, in the long run, preserves one's independence and overall wellbeing. It is not too late to get to the nearest gym and hook up with an experienced personal trainer; Toronto, in fact, has some of the best. Choose health and fitness.