Articles on how the Human Body obtains and uses energy?

Question

I don't need the answer to this question but credible articles/sources that would explain it

Answer 1

Energy in the human body is primarily obtained through the action of mitochondria, which are organelles inside your body's cells. The entire process of breaking down food and nutrients to create energy is called metabolism. I've linked you to the Wikipedia articles on these two topics. They, in turn, lead to a lot of good resources.