If you're already a fan of high-intensity interval training (HIIT) or have heard the buzz surrounding it, you know that it's a super fast, very effective way to work out. Basically, HIIT involves short, intense bursts of exercise with less intense moves or complete rest in between. Essentially, it's crazy-efficient—which means you could be spending less time in the gym each … [Read more...] about 7 Reasons to Try High-Intensity Interval Training