In some countries and U.S. states, recreational and/or medical marijuana has been legalized, although it is still illegal for children to use it (except for physician-recommended medical purposes). Marijuana has serious effects on the human brain and body, and it's important for teens to know what the side effects are and how marijuana will affect them if they choose to use at as adults. Marijuana's Harmful Effects on Youth provides information on the ways marijuana can negatively impact the human body. Topics include the differences between recreational marijuana and medical marijuana; how marijuana products (marijuana flower, oils, tinctures, edibles, etc.) affect each person differently; marijuana dependence and addiction; and much more. Marijuana's Harmful Effects on Youth is just one of five fascinating titles in the Marijuana Today series. Readers will learn about medical and recreational marijuana, the benefits and harmful effects of using marijuana, the various legal marijuana products that are now available, what supporters and opponents of marijuana legalization have to say, and much more. Each title in this series includes color photos throughout, and back matter including: an index and further reading lists for books and internet resources. Key Icons appear 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 in this series are as follows: Words to Understand are shown at the front of each chapter with definitions. These words are set in boldfaced type in that chapter, so that readers are 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. Educational Videos are offered in chapters through the use of a QR code, that, when scanned, takes the student to an online video showing a moment in sports' history, a speech, or an instructional video. This gives the readers additional content to supplement the text. 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. And a Series Glossary of Key Terms is included in the back matter containing terminology used throughout the series. Words found here broaden the reader's knowledge and understanding of terms used in this field.