**Down Syndrome**: A birth defect that allows a person to have eyes that look swollen, fingers that are a little meatier than usual, and they might have difficulties learning. [Down syndrome] is caused in birth development, each person has 23 pairs of [chromosomes], which makes each person to have 46 chromosomes. But for people with [down syndrome], they still have 23 pairs of chromosomes, except one particular pair has an extra, giving a total of 47 chromosomes. When this happens, this [extra chromosome] takes away some of the cells from other chromosomes, giving the person a slower, and poorer memory. And memory is tied to the brain, giving the person slower reflexes.
Facial features of people with down syndrome are similiar, but they are not related. They have a larger forehead, swollen eyes, and their hands and fingers might be meatier, and, or, the length to each finger unusual. People with down syndrome talk with slurs tied to each word they say, and their focus might be to some other object.
Down syndrome is a form of mental retardation.
*People of [down syndrome] may participate in [the special] [olympics].*
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