Answer
ALS, or amyotrophic lateral sclerosis, is a progressive neurodegenerative disease that affects nerve cells in the brain and spinal cord. It causes muscle weakness, atrophy, and difficulty speaking, swallowing, and breathing. The exact cause of ALS is unknown, but genetic, environmental, and immune system factors are thought to play a role. Treatment options focus on managing symptoms and improving quality of life as there is currently no cure.