tivity Disorder is estimated to affect 2.5% of adults, about 3 to 7% of school-age children (6-12 years) worldwide, and in more than 68% of cases the disorder lasts for life. Considering these numbers, their high prevalence, and with the objective of addressing the endless and controversial discussion about risks, the high increase in the consumption of the remedy in the country, and the probable effects of dependence on the use of the drug Ritalin (Methylphenidate) for the treatment of ADHD, this book was prepared simply and interactively to provide that - after this brief reading - you can even expand your own opinion of risks, benefits, truths, and the lies concerning the use of the drug Ritalin as the substance of first choice for the treatment of ADHD. The book also contains a list of some celebrities who own the Disorder and closes with exciting testimonials from people diagnosed with ADHD.