We can't bear to watch one more guy put hours into counterproductive cardio workouts and get almost nothing out of them. To ...

From HIIT to kettlebell swings, these 10 proven exercises help burn belly fat fast and strengthen core muscles. Experts say combining cardio and strength yields best results.

Even if you only have a few minutes to spare, you can still reap the benefits of the Tabata training method of HIIT.