Then, knee pain is a very common problem that can have many causes, but one common reason is damage to the cartilage. We will talk with Dr. Daniel Saris, an orthopedic surgeon at Mayo Clinic, to learn about a cutting-edge regenerative medicine approach to treating knee cartilage damage.

And, Americans, particularly young adults, have traded Marlboros and Newports for Jewel pods and vape pens. Ana Maria Rule, PhD, MHS, an assistant scientist in the Johns Hopkins Bloomberg School of Public Health Department of Environmental Health and Engineering, will explain why vaping poses the greatest health risks to teenagers.