Is eating any amount of processed meat safe?

Dr. Irfan Hafiz, Chief Medical Officer of Northwestern Medicine’s Northwest region of hospitals, joins Wendy Snyder (in for Bob Sirott) to talk about four types of cancer screenings, whether or not the age for colorectal cancer screenings will be dropped, and why eating processed meat isn’t safe. He also shares details about a decrease in deaths caused by heart attacks, a study between lactose intolerance and nightmares, and the risks of drinking at an older age.