High intensity interval training has been proven to be one of the best ways to lose body fat. This isn’t even debatable; it works, plain and simple as that. I’ll even give you some examples to show you a bit later in this article. Not only is it effective, but it is efficient, taking much less time than steady state cardiovascular exercise. I personally love it and have been using it for quite some time. Despite the effectiveness of this mode of training, many people don’t utilize it, but why is this?