Please note: This is a companion version & not the original book.Sample Book Insights: #1 The PC Pull-Ups exercise is based on a traditional Taoist technique. It also uses the Taoist belief that the circular muscles of the body are connected. By squeezing the muscles around your eyes and mouth, you can increase the force of your PC Pull-Ups.#2 The egg-shaped stone is best for strengthening your PC muscle. Doing PC Pull-Ups will strengthen your PC muscle considerably, but you can accelerate the process dramatically by using a stone egg for resistance.