Any exercise is good exercise, but when it comes to losing weight, it's hard to beat running. After all, __1__ is one of the most efficient ways to __2__ calories and get fit without having to restrict your diet. If you're already a runner, __3__ on. If you're not a runner yet but __4__ in losing weight, here are four __5__ why running can be the best exercise for weight loss.
Running works __6__ when you come to rest. Even when comparing running __7__ walking the same distance, studies find that running will __8__ to greater weight loss. In a longterm comparison study of runners and __9__， calories burned through running led to 90% more weight __10__ than calories burned through walking.
Running is time efficient. Even if the myth that running a mile and walking a mile burn the same number of calories were true, running would be a considerably__11__ way to burn those calories. Most people can run two or three __12__ as far as they can walk in a given amount of time.
Running is __13__. Little is actually required to __14__ running. You can do it alone. You can do it almost anywhere. You don't need any __15__ beyond a pair of running shoes. For this reason alone, running is the best __16__ for weight loss because it's __17__， it's accessible, and there are fewer barriers to maintaining a routine, even while traveling.
Two __18__： runner's high. The first rule of exercising for weight loss is that if you don't enjoy it, you won't stick to it. __19__， studies support what many runners have experienced—running can actually get you high. Scientists have found links between moderate to intense exercise and morphinelike (像吗啡的) brain chemicals, which __20__ the occasional flood of thrill that rushes over you during a hard run. That happy sensation you had after your last race makes you want to go for another run, right?
