Were you looking for information about Down Syndrome? Down syndrone is a common misspelling of Down syndrome.
Down syndrome is a disorder that occurs when there is a third 21st chromosome present. It is not inherited, but is rather, in most cases, the result of a random event that occurs during the formation of reproductive cells. Besides certain physical characteristics, people with Down syndrome are at an increased risk of developing mental retardation, congenital heart disease, and other medical conditions. Today, the life expectancy for people with this condition is commonly age 50 and beyond.
(Click Down Syndrome to find out more about this disorder, including its causes, common characteristics, and various treatment options. You can also click any of the links in the box to the right for specific information.)