An important nation wide study published in JAMA that evaluated the overlap of Autism and ADHD in American adults.
Autistic adults were found to have high rates of co-occurring ADHD and negative health outcomes such as cardiovascular disease and injury were significantly higher in those with combined Autism and ADHD. Of note, treating ADHD appeared to improve overall health outcomes in this population.
Read article: https://apsard.org/wp-content/uploads/2025/02/Autism-ADHD-Adults-JAMA.pdf