For years, it was believed that there was a hard line between Autism Spectrum Disorders (ASD) and Attention Deficit Hyperactivity Disorder (ADHD) within the field of psychology; if you had one you could not be diagnosed with the other. Recent evidence, however, has revealed the opposite. According to a 2017 study found in Eur Child Adolesc Psychiatry , over half of people with ADHD have some comorbidity with one or more psychiatric issues [1]. Solid numbers remain elusive, but experts can extrapolate that the two are not as segregated as they were once believed. So what are these disorders, and how are they both different to each other? How are they similar to each other? ADHD is a neurodevelopmental disorder commonly found in children that can continue into adulthood. This disorder affects many areas of the brain including (but not limited to) executive functions in the brain, impulse control, and attention span. ADHD is typically diagnosed when a child is in kindergarten or pres...