Why Do Some People Have Super Strength?

Imagine your body is like a toy car, some cars are built to go super fast, and others aren't. People with super strength are kind of like those super-fast toy cars. Their bodies are made in a special way that lets them lift really heavy things, like a car or even a brick. This happens because they have something extra-special in their muscles, it's like having more tiny engines inside your arms and legs to help you be stronger.