What are some interesting facts about the human body?
Here is only one of them:
The human body is a "live machine" which uses low-voltage electricity, created inside mitochondria (which are tiny parts of cells).
Mitochondria are the human body's “power plants” -- and this electricity is needed to create heart beats and send nerve impulses.
There are many trillions of mitochondria inside of a human being.
This link (below) helps us to understand the fascinating complexities of transforming food into energy -- energy needed to power billions of chemical reactions (per second!!), in every cell:
How Does the Body Make Electricity: