Doctors seem awfully quick to categorize people as being sick. After all, much of our health care system is essentially a sick care system, so it makes it easier to know with what we are dealing. However, in the quest to look for a diagnosis as a way to prevent further problems, both doctor and patient can be exposed to the system in a way that makes us sicker. My guest H. Gilbert Welch, MD, MPH, Professor of Medicine and Community and Family Medicine, Dartmouth Medical School, author of Over-Diagnosed: Making People Sick in the Pursuit of Health, provides us with vital information so we don’t have to be afraid of saying no to tests. He will even explain how our own body can heal cancer without the help of modern medicine.