If you're a fan of ab exercises, you'll love this challenge that gets you all the way to 100 crunches in just two weeks. It involves five types of crunches to work different areas of your core so once you learn how to do them, you can start crunching
"I tried this and those 10 minutes had me out of breath! I saved this one for future use! Victoria's Secret Model's Full-Body Workout (10 Minute Video) watched it for legs butt arms workout at home no machines necessary!"