At Men’s Fitness magazine, we often find that our readers tell us the same thing: “I just can’t find the time to train properly!” And that’s understandable – people are busy. You have to juggle work, home, family and social commitments, and you don’t want to have to give any of them up in order to spend an hour in the gym several times a week. But you do want to look good, feel energised and protect your health. The answer is not to train harder, but smarter. The truth is, you don’t need an hour-long workout to get fit and lean. By following the routines in this Guide, you can maximise your body’s response to the training stimuli, torch fat, add new muscle and get an effective cardiovascular workout in just 12 minutes.

At Men’s Fitness magazine, we often find that our readers tell us the same thing: “I just can’t find the time to train properly!” And that’s understandable – people are busy. You have to juggle work, home, family and social commitments, and you don’t want to have to give any of them up in order to spend an hour in the gym several times a w....