The Importance of Stem Cells

Krista Tippett: We're meeting Doris Taylor, who directs the Center for Cardiovascular Repair. She believes that stem cells will be key to our developing understanding of health at every level across the lifespan. As we continue to learn how stem cells function, grow and wane in human bodies, she insists we can also learn how to increase their function. This is the frontier known as regenerative or reparative medicine.