only about 20 minutes, are nearly as important as the workout itself. that’s because they can prepare you for your workout and may also help prevent injuries.
i know what you’re thinking: i just don’t have the time. i’m lucky enough to squeeze in a quick workout let alone all these extras. but i urge you to find time. doing so will help you get a better workout and burn more calories. in other words, it’s worth the effort. still not convinced? take a look at how little time each element will cost and how big the rewards are.
why you need it: it helps get your muscles ready for exercise. a 