Does swimming burn calories? Yes. How about cycling? Yes. How about a fancy fitness retreat in the south of France? Oui. All of those things are great for weight loss, but they have a higher barrier to entry compared to running. You need a pool, a bike, and a six-figure salary, respectively. But if you can afford a pair of sneakers then you can run. You can run in hot weather. You can run in cold weather. You can run in the snow. You can run in the rain. You can run with a friend. You can run by yourself. You can even run every single day if you’re smart about recovery.