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warns of the need for preventative care, like frequent checkups, dietary changes, medicines, or even the option of surgically removing the part ilkely to develop the disease.For example, if Thomson's test had been positive, she might have chosen to have her colon removed.There are also some controversial downsides to genetic testing.The value of genetic testing is particularly questionable when testing for a disease that is untreatable.An has decided to get genetic testing to see if she is likely to develop it. Her husband Bao is not happy about her choice.A positive test has benefits as well.For example, Alzheimer's disease runs in An Lee's family.Bao explains.It even death.If the result is positive, how will it help to know that she will probably

Did you know that a drop of your blood can predict
Another type of genetic testing is called "predictive
diseases you may develop in the future? This is
gene testing. This is used to predict an adult's risk of possible through genetic testing testing that analyzes developing certain diseases later in life. People who
the genetic information found in the cells
undergo this type of genetic testing are usually from a
of your body. Each cell contains a sample of DNA.
family in which many members have had a particular The information in DNA can help determine a person's inherited disease, like certain cancers or Alzheimer's
risk of developing certain diseases years from now.
disease
The most common type of genetic testing is called
There are many obvious benefits to this kind of newborn screening.* The goal of newborn screening testing. A negative test (a test that says a person is not is to identity treatable genetic disorders in newborn likely to develop a disorder) can bring a tremendous
babies. In many countries, infants are screened in
sense of relief. Jen Thomson, who recently underwent the hospital shortly after they are born. Although it is predictive gene testing for colon cancer, explains,
rare to find that a baby has a genetic disorder, those
*So many people in my family died of colon cancer, I that do have a disorder start receiving treatment right worried constantly. When the test came back negative, away. This early diagnosis and treatment prevents I felt as if someone had lifted an enormous weight off
physical and mental problems, and sometimes
my shoulders." A positive test has benefits as well. It
even death. warns of the need for preventative care, like frequent checkups, dietary changes, medicines, or even the option of surgically removing the part ilkely to develop the disease. For example, if Thomson's test had been positive, she might have chosen to have her colon
removed. There are also some controversial downsides to genetic testing. The value of genetic testing is particularly questionable when testing for a disease that is untreatable. For example, Alzheimer's disease runs in An Lee's family. An has decided to get
genetic testing to see if she is likely to develop it. Her husband Bao is not happy about her choice. Bao explains. If the result is positive, how will it help to
know that she will probably