What are heart murmurs in children? Heart murmurs are extra or abnormal sounds made by turbulent blood flowing through the heart. Murmurs are graded on a scale of 1 to 6, based on how loud they are.
Around her, countless rows of fellow K-pop fans pumped their own light sticks to the beat, creating a constellation of shapes above them: pink hearts for Blackpink, hexagons for EXO, glowing spheres ...