Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disease characterized by progressive muscular paralysis reflecting degeneration of motor neurons in the primary motor cortex, corticospinal tracts, brainstem and spinal cord.
Comprehensive, easy-to-understand information about this condition
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The ALS Association is the only national nonprofit organization fighting ALS on every front.
Patient Advocacy Groups (PAGs) provide support, resources, and community for patients and caregivers.