An illustration of a heart, inside the cavities (Auricle and ventricle

an illustration of a heart, inside the cavities (Auricle and ventricle) de la right personas haciendo actividades físicas y en las cavidades (auricle and ventricle) On the left, people who don't exercise and the heart on that side (left) It's in bad condition, unlike the other side (right) which is beautiful and in good condition.