Severe autism, or level 3 autism spectrum disorder, describes individuals with the highest support needs on the autism spectrum. People with level 3 autism often show challenges in communication and ...

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 ...

When people hear the word autism, it’s often associated with a specific set of traits. But in reality, autism spectrum disorder (ASD) is just that—a spectrum, encompassing a broad range of differences ...

Holli Stapleton says she "saw it coming," but still had to navigate the reality after the diagnosis Sara Belcher is a digital news writer/editor at PEOPLE. She has been working at PEOPLE since 2024.

A new University of California San Diego School of Medicine study offers a unified biological model to explain how genetic predispositions and environmental exposures converge to cause autism spectrum ...