How does a baby's bones grow?

A baby's bones grow through a process called endochondral ossification, where cartilage is gradually replaced by bone. This growth occurs at the growth plates, or epiphyseal plates, located at the ends of long bones. As the baby grows, these plates produce new cartilage, which is then transformed into bone tissue, allowing bones to lengthen and strengthen. Additionally, nutrition and physical activity play crucial roles in supporting healthy bone development.