Multiple-hour sweat sessions are so 2013. This year, it’s all about efficiency. Not a minute wasted.
Get in, get out, and get on with the rest of your day. It’s true; shorter, more intense workouts are all the rage. That’s because now you can slash your workout time in half—without sacrificing the results. Intensity, not duration, that’s the key. And to prove the point, we’ve enlisted the help of two men who pretty much invented the word intensity: Tony Horton and Shaun T.