The Arc does a good job of describing Down syndrome on its site

I often cringe at the dated descriptions of Trisomy 21 on the web, but this page on Down syndrome at the ARC website was so positive, I had to share it.

"Life expectancy for people with Down syndrome has increased dramatically in recent decades - from 25 in 1983 to 60 today.  Researchers are making great strides in identifying the genes on Chromosome 21 that cause the characteristics of Down syndrome.  Many feel strongly that it will be possible to improve, correct or prevent many of the problems associated with Down syndrome in the future."

You can always tell when someone who is writing about Down syndrome has actually had contact with someone  with Down syndrome. They see their strengths and have a sense of hope for their future.
Good for you, ARC!