FitSugar community member (and fitness instructor) livinginthin has shared a how-to on an overlooked exercise that everyone should be doing. Running, cycling, squatting, jumping, curling, crunches, and lunging — you do it all, right? Well, the one move you aren’t doing is probably the one that can keep you doing all those things (and more), pain and injury-free for a lifetime. What is it? Read more