<unk> , or<unk> , is a disease of the nerve cells in the brain and spinal cord that control voluntary muscle movement.<unk>  is<unk> o known as Lou Gehrig's disease.
Amyotrophic lateral sclerosis
Multiple system atrophy
Adrenomyeloneuropathy
Lambert-Eaton myasthenic syndrome
Paraneoplastic cerebellar degeneration
Tropical spastic paraparesis
Motor neuron disease
Charcot-Marie-Tooth Syndrome