What does our body do? The human body has different parts that help ... They also protect the important organs inside you. Your ribs keep your heart, lung and stomach safe. And your skull acts ...

The heart usually beats in an amazing harmonious synchronicity. A heart that beats 72 beats per minute, beats 4,320 times per hour, 103,680 times per day, 35 million times per year and 2 ½ billion ...