According to the data and statistics about ADHD from the CDC, “Millions of US children have been diagnosed with ADHD…388,000 children aged 2–5 years. 2.4 million children aged 6–11 years. 3.3 million children aged 12–17 years”. However, we have to consider how the symptoms from ADHD may overlap with symptoms from other syndromes and maybe the incorrect diagnosis.