Intellectual disability is a disorder marked by below-average intellectual function and a lack of skills necessary for independent daily living. The condition begins in the developmental period. The ...

A new study is among the first to estimate the number of adults in the U.S. with intellectual disability, offering policymakers and other stakeholders a snapshot of the need for resources. Just shy of ...

The U.S. Supreme Court is set to hear arguments in a case that advocates say could have major implications for how intellectual disability is defined. The high court will consider Hamm v. Smith on ...

People with intellectual disabilities, such as those with Down syndrome or fetal alcohol spectrum disorder, have historically had shorter life expectancies than the general population, but data from a ...

WASHINGTON – Disability rights groups fear a death penalty case before the Supreme Court could have implications for the intellectually disabled far beyond the criminal context. The justices are ...