Your heart is located under the ribcage in the center of your chest between your right and left lung. It’s shaped like an upside-down pear. Its muscular walls beat, or contract, pumping blood continuously to all parts of your body.
The size of your heart can vary depending on your age, size, or the condition of your heart. A normal, healthy, adult heart most often is the size of an average clenched adult fist. Some diseases of the heart can cause it to become larger.
