When we forget to work out, or life gets hectic, extra padding has a way of showing up around our middles. Try these core exercises to get back on track and burn belly fat. For this routine, you'll do a countdown: Start with 5 repetitions of each exercise, and then repeat the whole series with 4 reps of each exercise, then 3, then 2, and then 1! Remember, a whole rep includes both the right and left sides. 

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