Health problems have a significant impact on the well-being and even life expectancy of many people in low- and middle-income countries. This book examines the factors affecting life expectancy and what constitutes a healthy lifestyle. It explores the fight against diseases worldwide and the role of healthcare industries. It challenges readers to think about what they can do to promote good health, both in their own lives and the lives of others. The "Our World in Crisis" series includes an in-depth exploration of important issues facing people around the world today. Each book includes case studies, photographs, and infographics presenting statistical data. It is an excellent resource for children aged 10 and up who want to look beyond the headlines in a world of fake news or for civic education.