Intellectual disability is a disorder characterized by cognitive delays. Get the facts from WebMD about its symptoms, causes, and treatments.

We measured blood lead concentrations in 172 children at 6, 12, 18, 24, 36, 48, and 60 months of age and administered the Stanford–Binet Intelligence Scale at the ages of 3 and 5 years.

From 2019 to 2021, rates of intellectual disability or autism spectrum disorder did not increase by a statistically significant amount. The report found 1.65% of children had an intellectual ...

What Are the Piaget Stages of Development? Piaget's stages of development are part of a theory about the phases of normal intellectual development from infancy through adulthood, including thought ...

Senate Majority Leader Chuck Schumer has apologized for calling children with intellectual disabilities “retarded” after receiving criticism for using the term, which is medically outdated and ...

Dr. Hakon Hakonarson, director of the Center for Applied Genomics at Children’s Hospital of Philadelphia, who was not involved in the study, said that because most cases of intellectual ...

"Diagnosing children with neurodevelopmental conditions like autism and intellectual disability can be a lengthy and frustrating process for families," said Julian Martinez, MD, Ph.D., associate ...

We aim to determine long-term intellectual outcome of adolescents with early high-dose treated congenital hypothyroidism (CH). Sixty-three prospectively followed children with CH were assessed at ...