What is hair made of? And how is its growth controlled? What are the best ways to care for teeth? And why do we lose them? These questions are more are answered in this engaging book about teeth and hair! An obvious part of the human body, these elements have to do with several body systems, including the skeletal, and have a big impact on our lives. In this volume, readers take a close look and teeth and hair through accessible science and health information, all of which is complemented by simple diagrams.