The hour we usually spend at the gym is not that efficient. Sure we lift some weights and get in some cardio, but we also watch whatever is on TV, scroll around on our iPhones, and generally don’t push ourselves all that hard. Not only is this Scientific 7-Minute Workout quicker, you don’t need anything besides a chair and a wall to do it. Originally published in the American College of Sports Medicine’s Health & Fitness Journal, the workout is tough, but it’s also over in less time than it takes to even get to the gym in the first place. Each move should be done at a high intensity for 30 seconds with a 10 second break in between.

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