Terry Wahls, MD, is a clinical professor of medicine at the University of Iowa and a staff physician at the Iowa City Veterans Affairs Hospital, where she teaches medical students and resident physicians, sees patients in traumatic brain injury and therapeutic lifestyle clinics with complex chronic health problems that often include multiple autoimmune disorders, and conducts clinical trials. She is also a patient with a chronic progressive neurological disorder, secondary progressive multiple sclerosis, which confined her to a tilt-recline wheelchair for four years. But thanks to the power of the Wahls Protocol, which is based on Functional Medicine and the Wahls Paleo diet, Dr. Wahls restored her health and now pedals her bike five miles to work each day.