Mysuru: Across the world, every year 12 million people die due to heart disease, said Dr. Upendra Shenoy, Chief Cardiac Surgeon, Columbia  Asia Hospital. Delivering a talk on ‘A Healthy Heart,’ organised by Rotary Ivory City Mysore, at M.S. Subbalakshmi Hall, Mahajana High School in Jayalakshmipuram, here recently  he said, “Due to lifestyle and smoking,…