You're not going to like it, but running is amazing for losing weight and becoming healthier. Plus, it strengthens what is by far your most important muscle: your heart. If you crap out jogging half a mile, you just gotta keep doing it until you only crap out at 1 mile, then 2, and so on. It's really hard at first, but gets a lot easier after a few days, and the benefits are quickly noticeable the first few weeks. You don't have to sprint to gain enormous benefits. A quick jog every other day for 45 minutes to an hour plus cutting out junk food and sodas can do wonders.