Raise your hand if you’ve ever said, “I just don’t have time to work out.” There’s no doubt that one of the top reasons people struggle to find and sustain a fitness routine is because they feel like they don’t have time. Life’s busy. Short on time, meet High Intensity Interval Training. Also known as HIIT, this type of workout is a great solution to the no-time-to-work-out blues with an efficient yet effective workout. Not only is it a great use of time, it also can kick start your metabolism and leave you burning calories long after you’ve finished working out.