Build a head-turning body with our fat-blasting summer workout plan

In the world of fitness, five minutes sounds easy. But try any of the strategies that follow –courtesy of fitness expert B.J. Gaddour, the owner of streamfit.com – and you won’t think it feels easy. In fact, this type of training is so intense we call it “Five Minutes of Hell.”

In the time it takes the average guy to order a cup of coffee, you’ll blast out more than 100 repetitions and work every muscle in your body. You’ll torch up to 616 kilojoules and ignite your metabolism. And you’ll blow off steam and sweat buckets. Of course, the idea isn’t to stop after five minutes. You can stack several five-minute routines together to create an incredibly challenging and efficient workout. “In just 15 or 20 minutes, you can do more than the typical guy at the gym does in an hour,” says Gaddour. But it’s up to you:how hard are you willing to go?