2006-10-22 22:03:44 · 10 answers · asked by Anonymous in Science & Mathematics ➔ Biology
They generally have other physical conditions that lead to early death, such as heart problems and/or diabetes. Many people with Downs Syndrome are also epileptic. However, with the better health care now generally available, this is less true than it was.
2006-10-22 22:08:00 · answer #1 · answered by stevewbcanada 6 · 2⤊ 0⤋
I think your information is a bit outdated. The life expectancy for a person with Down syndrome has increased significantly. It's much more like 55-60 years of age. Progress in heart surgeries and therapies have done a lot to make life for people with Down syndrome much more "normal".
2006-10-23 12:37:02 · answer #2 · answered by Smom 4 · 1⤊ 0⤋
Down's syndrome is the result of having an extra copy of chromosome 21 (known as trisomy 21). This extra copy of genetic material has a number of affects, some of which can be clearly seen in a Down's Syndrome patient's physical appearance, and mental state. However, the extra genes affect a number of body parts, and they will usually have congenital defects such as heart problems, and kidney problems. Because these organs are essentially 'put together wrong', they cannot function quite as they should. As such, they will stop working sooner than they would in a normal, healthy individual, thus reducing the patient's life expectancy.
2006-10-23 05:56:33 · answer #3 · answered by Laurelin 2 · 1⤊ 1⤋
They have one extra chromosome at Chromosome 21 (we only have 2, they have 3). That's why their appearance is different from ours and the same for those who suffer the syndrome. Genetic make-up is important to determine how you will live. The abnormality of the genetic can lead to a serious problem. Since they are not normal in terms of chromosome number, thus, they cannot live longer than 30 years. To make the things easier, have a look at cancer as an example. Cancer can arise as result of a single mutation in your genetic material. Hope this helps.
2006-10-23 05:41:42 · answer #4 · answered by St Harpy 6 · 0⤊ 1⤋
Down Syndrome is a complication wherein there cromosomal number is 47 (normal is 46 for humans) there is one Autosome more. It means they have a normal reproductive system BUT their Low IQ and some other complications...leading them to death maybe due to some Physiological matters
2006-10-23 06:25:05 · answer #5 · answered by musiclover2008 3 · 0⤊ 0⤋
Average life span these days is mid 50s.
2006-10-23 15:08:18 · answer #6 · answered by Mahira 3 · 0⤊ 0⤋
a chromosome problem
it`s hard to explain due my English is extremely bad
2006-10-23 05:10:11 · answer #7 · answered by Papilio paris 5 · 0⤊ 0⤋
They don't. I know two that havent they are in there 40's.
2006-10-23 05:16:16 · answer #8 · answered by duh69huh 1 · 0⤊ 0⤋
no thats people with ingrown toenails
2006-10-23 08:14:18 · answer #9 · answered by Anonymous · 0⤊ 1⤋
Because they want to?
2006-10-23 05:10:58 · answer #10 · answered by ••Mott•• 6 · 0⤊ 2⤋