The Human Body: A Living Science Experiment

Your brain generates enough electricity to power a lightbulb. Every single thought, memory,

and movement sends electrical signals racing through billions of neurons. But here's the wild

part. Your body replaces almost all its cells every seven to ten years,

meaning you're literally not the same person you were a decade ago. And your stomach

acid is so powerful it can dissolve metal. Evolution made us walking science

experiments, constantly rewiring and rebuilding ourselves without us even noticing.