You don’t have to do cardio to lose fat, but cardio machines can be helpful for boosting your metabolism and burning more fat.
And if you use interval training, you can get more results than if
you did traditional aerobic cardio. But that’s another story for
another time. Let’s take a look at which machines burn the most
calories [...]

Why Cardio exercise Doesn’t Work. In theory, it should work
so perfectly well for all men and women, but as anyone who has
tried it knows, the practicality of it just doesn’t add up.

After all, some men and women do cardio 6 hours, 9 hours, or more per week, and still have belly fat to burn. On the [...]