 This is Minnesota Now. I'm Kathy Werzer. It's time for our segment, Vital Signs. Each month we talk about topics that are important to your health and take a deep dive into medical news or what's top of mind at the doctor's office. Joining us is Dr. John Hallberg, a family medicine physician at Mill City Clinic in Minneapolis and a professor at the University of Minnesota Medical School. Welcome back. Thank you, Kathy.