https://www.youtube.com/watch?v=KxTlIKr5Wbs&feature=youtu.be When you hear "exercise ball," you will probably begin to paint a huge inflated colorful ball in your head — like the one usually seen in gyms and Pilates studios. Well, I can't blame you, there are many types of exercise balls you can find out there. And even if they seem to look the same, they sometimes go by different names. Medicine Ball Medicine ball (med ball) is a weighted ball that can be held to do different exercis...