1.4 What Is Currently Known and Unknown about ADHD

We Know…

  • ADHD has been the focus of a tremendous amount of research, particularly during the past three decades. Literally thousands of studies and scientific articles have been published (nationally and internationally) on ADHD.
  • ADHD is very common not just in the United States but throughout the world. On average it affects 5 percent of school-age children around the world and 4 percent of adults. In the United States, prevalency rates of ADHD in school-age children is estimated to range between 5 and close to 10 percent (List 1.6).
  • There is no quick fix or cure for ADHD, but it is treatable and manageable.
  • ADHD is not a myth. It has been recognized as a very real, valid, and significant disorder by the US Surgeon General, the National Institutes of Health, the US Department of Education, the Centers for Disease Control and Prevention, and all of the major medical and mental health associations.
  • Proper diagnosis and treatment can substantially decrease ADHD symptoms and impairment in functioning (Lists 1.15, 1.19, 1.20, 1.22).
  • ADHD is a neurobiological disorder that is a result of different factors – the most common cause by far being genetic in origin. (1.7) Regardless of the underlying cause, there are on average differences in both the size and function of certain areas of the brain in individuals with ADHD. (Wolraich, & DuPaul, 2010)
  • ADHD exists across all populations, regardless of race, ethnicity, gender, nationality, culture, ...

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