The body is a machine, if it is not used, then what will happen.
Answers
When a living breathing body is transformed into a cold corpse, it seems obvious that something has gone missing. This mysterious substance has had many names. In 1907 the French philosopher Henri Bergson used the term élan vital, often translated as “vital force.” The idea has endured since the time of the ancient Greeks. Aristotle was preoccupied by the difference between inanimate and living things, perhaps because he was the son of the physician to the king of Macedon, the most influential Greek kingdom. The title of his book, De Anima, is usually translated as “On the Soul,” but he viewed the soul as the essence of living organisms, a life force.
A hundred years later, the great Greek physician Galen taught that the special life substance was pnuema, taken in via the lungs and spread throughout the body. He had evidence; when breathing stopped, life ended. For over a thousand years most people in the West went along with the idea that living things have some special life substance that makes them different from inanimate objects. A few pesky early Greek materialists like Democritus and Epicurus, thought no such special substance was needed to explain life. However, for most people, for most of human history, it has seemed obvious that living bodies are inhabited by some special life force. It persists today in talk of energy fields. At its root, this “vitalism” is the idea that some special nonmaterial energy or substance is required to explain life.