Pimples. Blemishes. Spots. Zits. Whatever you call it, acne is something that almost everyone will have to deal with at least once in their life. But what exactly is acne, and how do the various types of it differ? What role do hormones, diet, and other lifestyle factors play in causing it? How can it be prevented and effectively treated at home, and when is it a good idea to see a health-care professional? How can we stop acne from taking a toll on our skin and our self-confidence? Books in Greenwood's Q&A Health Guides series follow a reader-friendly question-and-answer format that anticipates readers'; needs and concerns. Prevalent myths and misconceptions are identified and dispelled, and a collection of case studies illustrates key concepts and issues through relatable stories and insightful recommendations. Each book also includes a section on health literacy, equipping teens and young adults with practical tools and strategies for finding, evaluating, and using credible sources of health information both on and off the internet-important skills that contribute to a lifetime of healthy decision-making.