Can the body break all records?

Every person is unique, but our bodies are similar in many ways. From this book, children will learn that the body not only changes with age but also can be trained: it becomes more resilient, flexible, and strong. However, each of us is structured in a way that allows us to improve our physical capabilities as well as train our willpower and memory.
An encyclopedia about the human body will be suitable for future record holders, doctors, and those who have set themselves the goal of being in great shape.