Tami Simon speaks with Bruce H. Lipton, an author and cell biologist who has taught at the nation’s leading medical schools. Over three decades of research in cell biology has made him a leading expert on the role and function of our cells. He is the author of the Sounds True audio learning programs The Wisdom of Your Cells and The Biology of Belief, as well as Spontaneous Evolution and 2012, an online event exploring his views of our current evolutionary shift from a scientific perspective. Bruce speaks about the lessons we can learn from our cells, the connection between what he calls "the field" and our physical body, and what he believes really drives evolution. (63 minutes)