Abraham Lincoln grew from youth to manhood on this southern Indiana soil. Many character and moral traits of one of the world's most respected leaders was formed and nurtured here. Explore Lincoln's boyhood and learn about the boy who would one day become the leader of our nation.
Cardiopulmonary resuscitation, commonly known as CPR, is an emergency procedure that combines chest compression often with artificial ventilation in an effort to manually preserve intact brain function until further measures are taken to restore spontaneous blood circulation and breathing in a person who is in cardiac arrest.
How the heart works. Your heart is a pump. It's a muscular organ about the size of your fist, situated slightly left of center in your chest. Your heart is divided into the right and the left side. The division protects oxygen-rich blood from mixing with oxygen-poor blood.