Runners who started training over 50 were as lean and fast as those who'd been running their whole lives, a new study shows. Keep in mind that your training prepares you for your racing, and the key to success in marathon racing is running a consistent, even pace, regardless of how good or how tired you feel. In fact, experts recommend starting really small, say, with one minute or even just 30 seconds of running at a time. Running is a great way to get fit, feel better and even form new relationships with other runners. This doesn’t always happen, but I’ve seen it happen a lot. With concern over heart health and the increasing aches and pains that come with each decade, that's a fair question. The reality is that it's never too late to take up running. I saw a question posted recently whether 50 years old is too late to begin running. As each year passes, more health challenges arise that could make it more challenging to take up running. So you start to eat cleaner fuel, and it can start to be a lifetime habit. If you do not exercise regularly then it would be best to begin slowly and not try to do too much too soon – speaking to a GP would be advisable. … Don’t start off each running phase running much faster than you can maintain and then slowing down as you begin to get tired. Start slow. Warm up. When you start running — and this can take a few weeks or more — you start to realize that what you eat is fuel. I started out slowly: walking, then hiking, and eventually working up to long-distance walks like half-marathons. And you realize that burgers and fries and soda are not the best fuel.