ELI5: Explain Like I'm 5

Pneuma (ancient medicine)

Pneuma is something that people a long time ago thought was inside of all living things. They thought it was like air, but a special kind of air that made things alive. They believed that this pneuma was important for things like breathing and moving, and that when someone's pneuma went away, they could get sick or even die.

The ancient Greeks and Romans were especially interested in pneuma and how it worked in the body. They thought that there were different kinds of pneuma, and that each kind helped different parts of the body. For example, they thought that someone's heart had a special kind of pneuma that helped it beat, and that someone's brain had a different kind of pneuma that helped them think.

Doctors and healers in ancient times tried to keep people's pneuma healthy by giving them special foods and medicines. They also used things like massages and acupuncture to help the pneuma flow better in the body. People would go to see these healers when they were feeling sick or had a problem with their pneuma.

While we don't really believe in pneuma anymore, some of the things that these ancient healers did are still used today. For example, massages and acupuncture are still popular ways to help people feel better, even though we don't think it has anything to do with pneuma.