As part of its fourth annual “Red in Fred” heart health campaign, Hill Country Memorial will host a free heart screening for teenagers aged 14-18 years old on Thurs., March 8 from 4-7 p.m. at the hospital in Fredericksburg. The “SCORE” screening will examine teens’ hearts for hypertrophic cardiomyopathy, a rare condition that causes part of the heart muscle to stiffen, producing an abnormal cardiac rhythm.