There is no treatment to halt the progression of Huntington's disease.
The course of the disease varies from person to person. Some people have mild symptoms that progress slowly. Others have severe symptoms at a young age.
People who exercise and remain active tend to have milder symptoms. Their disease may also progress more slowly than those who do not remain active.
However, everyone with Huntington's disease ultimately becomes severely debilitated. They have difficulty eating and swallowing. They become susceptible to infection. These complications usually cause death.
For adults, the time from the first symptoms until death is usually 10 to 20 years. In juvenile Huntington's disease, the disease progresses more rapidly. Death usually occurs within 8 to 10 years of disease onset.