To mark World Down Syndrome Day on March 21, Fox News contributor Tom Shillue headed to Times Square to speak with a father of a girl with Down syndrome about common misperceptions.

Down syndrome, which causes a range of developmental differences and affects 1 in 700 newborns in the United States, is caused by the presence of an extra copy of chromosome 21. Mongkolchon ...

Babies with Down syndrome have an extra copy of one of these chromosomes, chromosome 21. This extra copy changes how the baby’s body and brain develop, which can cause both mental and physical ...

The ad, created by an Italian Down syndrome organization called Coor Down, was released in recognition of World Down Syndrome Awareness Day, March 21. Its tagline, #AssumeICan, is being used by ...

This Barbie has Down syndrome: Toymaker Mattel Inc., has teamed with the National Down Syndrome Society to introduce its first Barbie with the genetic condition on Tuesday — the latest doll in ...