Trainers explain how to incorporate step workout exercises into your exercise routine for added intensity and resistance. Here's what you should know. Our editors independently select these products.

The temporomandibular joint (TMJ) is the hinge-like bone that connects your jaw and your skull. You can feel it moving by pressing your index fingers to your cheeks and opening and closing your mouth.

Head to any step aerobics class and you may feel like the instructor is speaking another language. Don’t worry, we’ve all been there. But the good news is that most of the basic aerobic dance steps ...