Difficulty: Easy for beginners but good exercise for all levels.

This video demonstrates a simple ab rotation exercise that can strengthen your core, tighten your abs and help you burn calories.  Best of all, it’s fairly simple and easy to add to your weight loss program because you can do this just about anywhere.  The exercise ball is great, but you don’t need it!  You can use any kind of ball, or for that matter, any object that is not too heavy, such as a book or a large firm pillow or medium-sized sofa cushion.  Grab something, sit down and try it now!  You are sure to feel it in your abs!