One of the biggest challenges facing the world today is keeping people healthy. Disease, starvation, and war are major problems that people struggle with every day. Readers learn about these problems—from eating disorders to AIDS—and also learn what is being done to conquer them. Doctors, humanitarians, and ordinary people are working hard to make the world a healthier place, and readers discover how they can do their part to help them.

One of the biggest challenges facing the world today is keeping people healthy. Disease, starvation, and war are major problems that people struggle with every day. Readers learn about these problems—from eating disorders to AIDS—and also learn what is being done to conquer them. Doctors, humanitarians, and ordinary people are working hard to make the world a healthier place, and readers discover how they can do their part to help them.