Although ADHD has been researched and studied for over a century, there are still aspects of it that are not understood by the general public. ADHD is a disorder that affects a person's ability to pay attention and focus. Although this sounds simple enough, the disorder shows up in different ways. Some cases of ADHD involve hyperactivity, while others do not.
Some people are better than others at keeping their hyperactivity under control. Also, the general public tends to
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