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Down syndrome or Down's syndrome, [12] also known as trisomy 21, is a genetic disorder caused by the presence of all or part of a third copy of chromosome 21. [3] It is usually associated with developmental delays, mild to moderate intellectual disability , and characteristic physical features.
In 1983, it was just 25 years old — but today it's 60 years old, per the Global Down Syndrome Foundation, a nonprofit based in Denver, Colorado. The most common type of Down syndrome is trisomy ...
According to the Centers for Disease Control, each year about 6,000 babies are born with Down syndrome, making it the most common chromosomal disorder. That's about 1 in every 700 newborns. That's ...
Children with Down syndrome sometimes have heart problems, frequent ear infections, hypotonia, ... The third stage, between two and three years old, involves the ...
The average IQ of a young adult with Down syndrome is 50, equivalent to the mental age of an 8- or 9-year-old child, but this number varies widely. [3] At the same time, they enjoy a rich social and emotional awareness. [4] Down syndrome is the most common chromosome abnormality in humans, [3] occurring in about one per 1000 babies born each ...
Lindsey Wiggins tells PEOPLE she had some inklings that her daughter might have Down syndrome, but "broke down" when a doctor suggested tests at 4 months old ... Wiggins, who also has a 6-year-old ...
[32] A 2009 study examined children at 8 months, 4 years and 7 years and found that higher paternal age was associated with poorer scores in almost all neurocognitive tests used but that higher maternal age was associated with better scores on the same tests; [33] this was a reverse effect to that observed in the 2005 review, which found that ...
An 8-year-old boy with Down syndrome became a hero after he alerted his 14-year-old sister of a fire in their Colorado home, helping them get out on time before it was engulfed in flames.