Motor Neurone Disease, an extremely rare condition, is the result of death of some cells (motor neurons) in the nerves that extend from the brain stem to the muscles and manage their movements.
Since in this case they are not stimulated or used, the affected muscles gradually decay and the affected part of the body becomes weaker and increasingly loses its ability to co-ordinate. Disease can cause problems with swallowing, breathing, walking or any other muscle activity (meaning all physical functions).
The motor neuronal disorder most commonly occurs in people over the age of 50. The cause is unknown, and the disease has no cure. The treatment focuses on relieving the symptoms and helping the patients stay relatively mobile and self-reliant. In most cases, 5 to 10 years after the onset of the disease, death occurs.