According to the American College of Cardiology, a light jog may be the best form of running if you want a longer life. And all you need to do is cover 2 miles. For the study, researchers followed 5,000 healthy people for 12 years. They tracked how often they ran, as well as how fast and how far. And the people who had the lowest death rate were light joggers who ran no more than three times a week, at a slow or average pace, for 15 to 30 minutes at a time. In plain English – that translates to jogging two miles, three times a week. And the best news is that most people find that totally doable – as far as the time they have for exercise. So even though you get bragging rights for running marathons… all you need to do is jog two miles to live a longer life.