Autism is a lifelong developmental disability that affects the way a person communicates and how they experience the world around them. ADHD is one of the most common neurodevelopmental disorders of childhood. It is usually first diagnosed in childhood and often lasts into adulthood.
Children with ADHD may have trouble paying attention, control impulsive behaviors (may act without thinking about what the result will be), or be overly active. Autism and ADHD often coincide. An estimated 30 to 80 percent of children with autism also meet the criteria for ADHD.