Have you ever worried that you've forgotten something important, even though another part of your brain knew everything was fine? We all do this from time to time. But some people can't stop themselves from checking, or counting, or washing their hands. These are symptoms of obsessive-compulsive disorder. OCD can leave people feeling helpless and out of control. Fortunately, there is treatment available for OCD to help these people regain control of their lives. The lives of millions of kids are affected by mental illness. And yet it's all too common for kids to feel like they are alone with their problems. Whether you're seeking information for family, friends, or yourself, these books help explain the challenges faced by people with mental disorders. Each title in this series contains color photos and back matter including: an index, further reading lists for books and internet resources, and a series glossary. Mason Crest's editorial team has placed Key Icons to Look for throughout the books in this series in an effort to encourage library readers to build knowledge, gain awareness, explore possibilities and expand their viewpoints through our content rich non-fiction books. Key Icons are as follows: Words to Understand are shown at the front of each chapter with definitions. These words are then used in the prose throughout that chapter, and are emboldened, so that the reader is able to reference back to the definitions- building their vocabulary and enhancing their reading comprehension. Sidebars are highlighted graphics with content rich material within that allows readers to build knowledge and broaden their perspectives by weaving together additional information to provide realistic and holistic perspectives. Text Dependent Questions are placed at the end of each chapter. They challenge the reader's comprehension of the chapter they have just read, while sending the reader back to the text for more careful attention to the evidence presented there. Research Projects are provided at the end of each chapter as well and provide readers with suggestions for projects that encourage deeper research and analysis. A Series Glossary is included in the back matter contains terminology used throughout the series. Words found here broaden the reader's knowledge and understanding of terms used in this field.