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Utilize a medicine ball, a Swiss ball, and your own bodyweight.
While trying to do back squats.
Our fitness expert explains.
These abdominal moves will forge crazy core strength and stability.
Grab hold of some iron and work your legs, back, and abs to exhaustion.
Take the burn outside with this 20-minute resistance-band workout.
Power through this grueling 30-minute routine.
About 3-4% of people may suffer from "exercise dependence."