Exercise guidelines | Elite Athletes | Liquid Biopsy | Guillain-Barré Syndrome

On this Mayo Clinic Radio program, Dr. Michael Joyner, an anesthesiologist and human performance expert at Mayo Clinic, discusses the exercise guidelines and ways to get people moving. Dr. Joyner also discusses elite athlete performance and the possibility of someone running a marathon in under two hours. Also on the program, Dr. Minetta Liu, an oncologist at Mayo Clinic, explains how liquid biopsy may individualize cancer treatments. And Dr. P James Dyck, a neurologist at Mayo Clinic, discusses Guillain-Barré syndrome.