Residents of the District of Columbia lack full democratic representation in the U. S. Senate or the U.S. House of Representatives. Representation in Congress is limited to a non-voting delegate to the House of Representatives and a shadow Senator.
Huntington's disease. Definition. Huntington's disease is an inherited disease that causes the progressive breakdown (degeneration) of nerve cells in the brain. Huntington's disease has a broad impact on a person's functional abilities and usually results in movement, thinking (cognitive) and psychiatric disorders.
Huntington's disease is caused by an altered gene. This gene is passed on from parent to child, but the condition isnât obvious at birth. The symptoms usually, but not always, first appear when the person is approaching middle age. Huntington's disease is a slow, progressive condition that affects people differently.