Trillions and trillions of microbial cells live on and inside your body. A small number of these microbes are unhealthy germs. But most belong on your body and perform essential jobs. Microbes help digest your food, protect you from dangerous germs, and help your body fight disease. Using techniques such as DNA sequencing, scientists are uncovering the many secrets of the human microbiome. Scientists are learning how the foods we eat and the medicines we take, such as microbe-killing antibiotics, can affect the bugs in our bodies. They are learning more and more about this system that keeps us healthy and how we can protect it in return.

An exploration of how the human body works and what happens when things go wrong and how to correct them. The text also looks at recent medical advances, ranging from laser surgery to genetic engineering.

Text and illustrations present information on the parts of the body and how they work. Features clear, expertly written text, photos, charts, graphics, and 3D models -- all of which combine to make complex scientific concepts easy to understand.

Inside our bodies are many organs and vessels, all grouped into systems that keep us running. How do they interact? What, exactly, are they made out of? And why is it so important to eat right, exercise, and take care of our bodies? Nancy Winslow Parker uses colorful scientific drawings, surprising facts, and engaging anecdotes to explain the anatomy and function of our vital organs. Ages 6-9

This book will provide hours of fun. Along with a wealth of information, there are easy-to-follow guidelines for practical, safe experiments on many subjects. The human body is covered in detail -- the surface, framework, oxygen supply, fuel, transport & maintenance, nervous system, senses, & life cycle. Leeuwenhoek & his discoveries are mentioned several times. Glossary & index.