(Mayukh Saha) When one door closes, several others open up. Joan MacDonald, a septuagenarian from Ontario knows all about it. She believes that age is no impediment to how you live your life. Just because you are old doesn’t mean that you have to give up on life – or simply waste away during the years left. After her general physician mentioned prescription drugs for her old age, she decided that it was time for her to make big changes. This is when she got into the fitness industry.