Down syndrome (or Trisomy 21) is a naturally occurring chromosomal arrangement that has always been a part of the human condition.
Down syndrome is universally present across racial, gender or socioeconomic lines in approximately 1 in 800 live births, although there is considerable variation worldwide.
Down syndrome usually causes varying degrees of intellectual and physical disability and associated medical issues.
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People with Down syndrome answer your questions about Down syndrome.
Being clear on myths associated with Down syndrome and compare them to the facts.
What to say and what not to say about Down syndrome.