Avett Duffy of Greenwood wears a crochet hat on Wednesday, Jan. 31, 2018 at Franciscan Health Indianapolis. The hat was given to him by the American Heart Association through their Little Hats, Big Hearts program which raises awareness about heart disease, the No. 1 killer of Americans, and congenital heart defects, the most common type of birth defect in the country. Scott Roberson / Daily Journal