I remember that losing weight requires aerobic exercise. In fact, swimming is very slimming, but it takes at least an hour to burn fat, so most people simply can't last that long. Running is also difficult to persist, and it takes at least half an hour to start burning fat. So if you want to lose weight, you should run for an hour and then do some stretching exercises, because running will make your calves hard. According to the online statement, you still have to walk for an hour.