High-intensity interval training (HIIT) has been documented in the history books since the early 1920s. But it wasn’t until 2014 that this high-intensity workout — which features short, alternating bursts of exercise and rest periods — rose to fitness fandom after being featured in the American College of Sports Medicine's list of fitness trends.
Ten years later, HIIT is still having a moment. And with one quick look at the benefits, it’s clear to see why. The heart-raising and sweat-inducing workout can increase strength along with improving stamina and giving your cardiovascular endurance and metabolism a boost. And better yet, it can do so in minimal time.
