Down Syndrome Facts
Down syndrome occurs when
There are three types of Down syndrome:
An individual has a full or partial extra copy of chromosome 21. This additional genetic material alters the course of development and causes the characteristics associated with Down syndrome.
People with Down syndrome attend school, work, participate in decisions that affect them, have meaningful relationships, vote and contribute to society in many wonderful ways.
Life expectancy has increased dramatically in recent decades
Every person with Down syndrome is a unique individual and may possess these characteristics to different degrees or not at all.
Upward slant to the eyes
All people with Down syndrome experience cognitive delays, but the effect is usually mild to moderate and is not indicative of the many strengths and talents that each individual possesses.
Down syndrome is the most commonly occurring chromosomal condition.
One in every 691 babies is born with Down syndrome – about 6,000 each year.
Deep crease across the center of the palm.
People with Down syndrome have an increased risk for certain medical conditions such as congenital heart defects, respiratory and hearing problems, Alzheimer's disease, childhood leukemia and thyroid conditions. Many of these conditions are now treatable, so most people with Down syndrome lead healthy lives.