There are three levels of autism spectrum disorder (ASD), which are described in the Diagnostic and Statistical Manual of Mental Disorders, 5th Edition (DSM-5). Each autistic person is diagnosed as ...

Medically reviewed by Kira Graves, PhD Key Takeaways Adults can use self-screening autism tests before seeing a healthcare ...

John Frizzell always had a feeling he was different. The Hollywood film score composer could rattle off facts about chess puzzles, Immanuel Kant’s synthetic a priori knowledge and other esoteric ...

Autism symptoms in adults often include social communication difficulties, restricted and repetitive behaviors, and sensory sensitivities. Symptoms can vary widely, from food aversions and sleep ...