Karen Amen's The Crunch: The Latest, Most Effective Way to Flatten Your Stomach

A safe, effective, and new way for men and women to achieve their most elusive fitness goal--a flat, well-toned stomach--by one of the country's top fitness trainers. Demonstrates how doing just a few minutes of crunches a day in the proper way, with fewer repetitions and more emphasis on technique, can strengthen your back, improve your posture, and give you a stronger, flatter stomach in just one month.