It's a small truth that we never warm up sufficiently. Too little time, not having a set routine, feeling tired before we start and just wanting to get on with it, the excuses are endless. Which is why the 4-Minute Warmup should always be handy when you exercise. It is easy to do, it warms up the whole body. You can double the time for cold mornings or if you haven't exercised for some time. And it will make your workout that much better.