Amyotrophic lateral sclerosis Russell Weller Mar 13, 2023 A progressive nervous system disease that affects nerve cells in the brain and spinal cord, causing loss of muscle control. Related Articles: Tool to Test Health of Mitochondria in Neurons May Lead to ALS Therapies, Study ReportsAnimal Studies Targeting Mitochondria Help Prolong Survival, Review ShowsHow Common is Mitochondrial Disease?