HIIT - the latest fitness fad [news]
During my two decades in the fitness industry, I've witnessed a never-ending range of fitness fads, programs, systems, methods and philosophies. In the context of what we know today about exercise, some of the crazy stuff we used to do seems, well, crazy. But now and again the fitness industry does get it right. My latest girl crush is on high-intensity interval training (HIIT to us fitanistas). Nothing gets my catecholamines more excited than the prospect of 60 minutes of tearing the gym door off its hinges. I know. It's perverse.