The Universe Within You

You are walking around right now with a universe inside your body. It sounds crazy,

but you are made of trillions of tiny units called cells, and every single

one is alive. We used to think life just magically appeared from rotting meat,

but now we know life only comes from other life. Inside these cells, it is like a sci-fi

movie. You have mitochondria acting as power plants and lysosomes recycling your waste.

Even plants have tiny mouths on their leaves just to breathe. It is terrifyingly beautiful that the

only thing keeping you alive is microscopic biology working overtime.