A task force has updated guidance when it comes to regular mammograms to screen for breast cancer.  The U.S. Preventive Services Task Force says regular mammograms should start at age 40, and the screenings should take place every other year.

Dr. Kimberly Hart, an oncologist with DMC Huron Valley-Sinai Hospital in Oakland County, joined WWJ's Tracey McCaskill live to talk about what women need to know. (Photo: Getty Images)