"Raina wakes up one night with a terrible upset stomach. Her mom has one, too, so it's probably just a bug. Raina eventually returns to school, where she's dealing with the usual highs and lows: friends, not-friends, and classmates who think the school year is just one long gross-out session. It soon becomes clear that Raina's tummy trouble isn't going away... and it coincides with her worries about food, school, and changing friendships. What's going...

"A newbie to the track team, Patina "Patty" Jones must learn to rely on her family and teammates as she tries to outrun her personal demons"--

Do you know how many bones are in your body? Get under your skin in this book. Young readers will discover how bones fit together, how they move, and how they protect other parts of the body.

The nervous system is a complex network of nerves that allows you to experience the world around you. Children will find out how nerves carry messages to the brain so that people can do things like jump and eat.

Muscles help us lift, push, pull, and move. Eager readers will explore the different kinds of muscles, how their muscles work, and how to take care of them.

In the 1900s, nearly 300 million people died from the smallpox disease. By 1980, after millions of people received the smallpox vaccine, smallpox had disappeared from the world. Find out more in Vaccines, a title in the Debating the Issues series.

Would you believe bee's venom could help you feel better? How about a candle in your ear, or a string running through your nostrils? People have used all sorts of kooky remedies to fight pain and illness. Some work. Others, not so much. Find out more about odd medical cures of past and present!

Did you know that the human brain consumes about 20 percent of all energy used by the body? An adult brain weighs approximately 3 pounds (1.4 kilograms). Discover more fascinating facts in Nervous System, a title in the Body Systems series. Each title in Body Systems guides readers through the fascinating inner workings of the human body. The human body contains several complex systems that work closely together to support life and allow the body...

Long before they were allowed to train as doctors, women worked as nurses and healers. They used herbs and other natural remedies, passing down their knowledge from one generation to another. Learn more in Medicine and Health, one of the titles in the Women in STEM series.

Learn about genes and heredity through clear text, photographs, and graphics.