ELI5: Explain Like I'm 5

Human development (humanity)

Human development is the process of growing and changing to become an adult. It starts when we are babies, and we slowly learn and grow, eventually becoming adults. Our bodies grow bigger and stronger, our minds become smarter and more capable, and we learn new skills and take on new roles. We learn to care for ourselves and others, and figure out our place in the world. It's a long process, and everyone does it in their own way.