I can't imagine there are but I could be wrong.

Down children have certain physical features, such as a flatter face, upward slanting eyes, and a somewhat larger tongue. They may have medical problems, too, such as heart defects. And they usually have some mental retardation, which means they may have trouble learning but they are not autistic. Despite their challenges, kids with Down syndrome can go to regular schools, make friends, enjoy life, and get jobs when they're older. Health Problems Are Common Babies with Down syndrome tend to develop more slowly than other babies do. They may start walking later than other babies. About half are born with a heart defect, which can be corrected by surgery. Also common are stomach problems, likely to get infections that affect their lungs and breathing. When they do get infections, they often last longer. They may have eye or ear problems or digestion problems like constipation. Some may develop leukemia, a type of cancer. Each person with Down syndrome is different and may have one, several, or all of these problems. You know that Down syndrome is caused by a problem with a chromosome. It's nothing the mom or dad did before the child was born. Anyone can have a baby with Down syndrome but the older the mother (age 35 or over), the greater the risk. Is There a Cure? There is no cure for Down syndrome. It is something a person will have all of his or her life. But research continues. What's Life Like for Kids with Down syndrome? These kids have feelings just like anybody else. When they get teased, it hurts their feelings. They want to be accepted and have friends. If you know someone with Down syndrome, you can be a big help by not teasing him or her. Instead, offer a helping hand and a friendly word of encouragement. After they graduate from high school they often go to work. You may have seen a person with Down syndrome on the job — maybe helping in an office, a grocery store, or restaurant. In fact, they are known for their enthusiasm, reliability, and dedication. For all their hard work, they feel a sense of accomplishment. http://kidshealth.org/kid/health_problems/birth_defect/down_syndrome.html

i dont know ive known some pretty intelligent people with downs. but apparently it always makes you slower...

some people with downs are extremely dependent, but there are others who have a job and pay their own bills, it just depends on the person and how bad they are!!!