Dr. Jeffrey Kopin: We have to increase rate of vaccination

Dr. Jeffrey Kopin, Chief Medical Officer for Northwestern Medicine Lake Forest Hospital, joins John Williams to talk about the most stressful part of a doctor’s day, former White Sox closer Bobby Jenks dying of stomach cancer at 44, the health ramifications that might come from being a competitive eater, a new study showing that American kids have become increasingly unhealthy, and the amount of measles cases in the U.S. this year.