Hi

A single abnormal gene passed on by one parent to a child causes Huntington disease, an illness in which the brain's nerve-cell function is disrupted. This leads to a progressive destruction of physical, intellectual and emotional abilities and inevitably to death.The abnormal gene causes a nervous-system condition that causes jerky movements, severe emotional disturbance and mental decline. Symptoms usually strike in mid-life, in the 30s or 40s, although it also can attack children and the elderly. Consequently, part of the devastation of the disease is that by the time a person is diagnosed, most victims have started families. The disease ultimately ends in death after 10 to 25 years. There is no known treatment to halt the progression of Huntington disease.

In the United States, there are about 10 cases of Huntington disease for every 100,000 people — about 30,000 people in all, with another 150,000 people at risk of inheriting the disease.

In my view some people are reluctant to take the test due to:

1. Fear that they would die in no time
2. Some people think that they would be happy if they don't hear a bad result
3. some people don't have the money to take the test
4. Some people like to get tested when they think something is wrong with them so they wait

I hope I answered your question