William Henry Bill Cosby, Jr. (born July 12, 1937) is an American stand-up comedian, actor, and author. Cosby's start in stand-up comedy began at the hungry i in San Francisco, and was followed by his landing a starring role in the 1960s television show I Spy. He was also a regular on the children's television series The Electric Company during the show's first two seasons.
Crunch on Exercise Ball: This exercise not only build your abs but also promotes balance and stability. Crunch on exercise ball is a highly effective exercise to build upper and middle ab muscles. Check out the proper way to do this exercise: Sit on the ball and keep your feet straight on the floor.
ALSO ON MDM. The Most Effective Exercises. If you're like most people, you've been doing the usual set of workouts and exercises to get into shape. Push-ups, sit ups, crunches and lunges are great exercises when you're first starting out, but your body will adapt to the routine fairly quickly.