Huntington’s disease is a progressive brain disorder caused by a single defective gene on chromosome 4 — one of the 23 human chromosomes that carry a person’s entire genetic code. It is a genetic disorder and leads to dementia. Symptoms of Huntington’s disease usually develop between ages 30 and 50, but they can appear as early as age 2 or as late as 80.
- Uncontrolled movement of any part of the body
- Decline in mental function
- Memory issues
- Poor attention span
- Concentration problems
- Obsessive-compulsive behavior