|Huntington's disease (gene found in 1993), is a
hereditary, degenerative, and terminal brain disease.
Huntington's disease is caused by a genetic defect on
chromosome 4. Huntington's disease (HD) or Juvenile
Huntington's disease (JHD), is an autosomal dominant
disease. This means that only one parent must have the
mutated gene for a child to inherit the disease.
Huntington’s disease slowly diminishes the affected
individual's ability to walk, talk, and reason. It has been
noted that symptoms of Huntington's disease can begin
to show at ages 40-50, however we know that symptoms
can show much earlier in life. In time, the person with
HD relies completely upon others for their personal care.
HD affects the lives of entire families - emotionally,
psychologically, socially, and economically. HD affects
males, females, and knows no ethnic and racial
boundaries. So many within the international community
feels as if Huntington's disease is like having
Parkinson's, Alzheimer's, and Schizophrenia all at the
Every child of a person with Huntington's disease has a
50/50 chance of inheriting the fatal gene. Often, the
individual with HD might seem to be (or act) "drunk" to
the on-looker, due to the physical attributes of the
disease. Juvenile HD (JHD) affects younger individuals.
When the onset of the disease happens at age 20 or
before, the disease is called Juvenile Huntington's
disease. Upwards of 5 percent of known cases of
Huntington's disease is the Juvenile form. Individuals
who suffer with JHD experience the same challenges as
individuals with HD, however the onset of physical and
emotional symptoms happens earlier in life.
*Recent 2013 updated statistics specify that 1 out of every
7,000 people has HD.*
*For description of reduced penetrance and full
penetrance of Huntington's disease (from an actual
positive lab result, click here.*