Why do I need food?

Why do I need food?

Professor Gizmo (Amazing Science Presentations) gives expert video advice on: What is my body made of?; Why do we get "goose bumps"?; How do I catch colds? and more...

We need food for energy. We can't just go on without any form of energy, and we can't lay out in the sun and get solar energy; so we have to take in food. Food is basically, if you stop and think about it; stored solar energy. This is because every piece of food that you eat, you can trace it back to energy from the sun. So basically stored solar energy gets into our body, and our body through the digestive system breaks it down into small enough particles that can be taken to the cells. These cells have the ability then to release that energy and keep us warm, help us move and give us energy.