CORPUS CHRISTI (KIII NEWS) - People laced up their walking shoes this morning to help in the fight against heart disease. Dozens of folks gathered at Whataburger Field Saturday morning for the Heart Walk! The walk is the American Heart Association's premiere event for raising funds to save lives from this country's No. 1 and No. 5 killers - heart disease and stroke. Designed to promote physical activity and heart-healthy living, the Heart Walk creates an environment that's fun and rewarding for the entire family.