As cliché as it sounds, it's never too late to better your life. And Joan MacDonald from Ontario, Canada is the perfect example of that. After doctors told the 73-year-old woman that she'll have to up her medication dosages if she...

As cliché as it sounds, it's never too late to better your life. And Joan MacDonald from Ontario, Canada is the perfect example of that. After doctors told the 73-year-old woman...