:: ADHD: The challenges :: Is there anything I can do to help myself? :: ADHD and School, College or Uni If you've found out that you have ADHD, you might be relieved to know that there's a reason for some of your behaviours. And you're definitely not alone - up to 6% of school students in Australian have ADHD. To download the Teenagers with ADHD Brochure (PDF) – Click here :: So what exactly is ADHD? :: What causes ADHD? :: Are there different types of ADHD? :: ADHD: The good news