Fortunately, ETNT has you covered. We spoke with Jake Dickson, NASM-CPT, a certified personal trainer with Barbend, who shares his #1 upper-body circuit workout to lose underarm fat and sculpt the ...

If you like short and snappy workouts or you want to find a nice little upper body pump to tag onto your ... and repeat the full circuit three to four times with minimal rest.

But the beauty of circuit workouts is that they're highly customizable. You can choose to include bursts of cardio, decide to focus on all lower body or upper body, use different pieces of ...