MODEL RELEASED. Pulse measurement. View of a Chinese herbal medical practitioner taking a 5 year-old boy's pulse. The doctor is assessing the boy's pulse by gently squeezing the boy's wrist. On the desk (at lower left) are various herbal remedies used in Chinese medicine. Chinese medicine is based on the existence of a universal life force, Chi. Chi manifests itself in the body as two complementary forces: Yin and Yang, which must be balanced to achieve good health. Chinese medicine physicians may prescribe a range of treatments including herbs, acupuncture, acupressure and t'ai chi.