How to build strength and muscle in a 15-minute workout, according to the World's Strongest Man

Source: Business Insider

Mitchell Hooper, the reigning World's Strongest Man, can deadlift 1,000 pounds and is vying for the world record in the exercise. ROBYN BECK/AFP via Getty ImagesTop strongman Mitchell Hooper is preparing to compete for the deadlift world record. Huge weights and long workouts aren't necessary for most people to build strength and muscle, he said.