Each month, Dr. Jon Hallberg joins MPR News host Cathy Wurzer to talk about topics that are important to your health and take a deep dive into medical news.Hallberg is a family medicine physician at Mill City Clinic and a professor at the University of Minnesota Medical School.In this installment of Vital Signs, he weighs in on whether higher cigarette prices in Minneapolis will reduce smoking, explains the role art and storytelling have to play in the medical field. And in honor of National Poetry Month, he shares a poem. The Center for the Art of Medicine is hosting an evening of storytelling Saturday, May 4 at the Parkway Theater in Minneapolis.