The holidays are a time of feasting, but according to Dr. Mark Hyman, director of the Center for Functional Medicine at the Cleveland Clinic, our relationship with food is causing a health crisis. He blames ‘chronic lifestyle diseases’ -- the accumulated effects of poor diet and lack of exercise – for about 80 percent of doctor visits and $1.3 trillion in annual healthcare costs. In this week’s Exploradio, WKSU’s Jeff St.Clair talks with Hyman about his prescriptions for healthy living and using