What is ALs? #ALS ALs is a disease of the nerve cells that control the muscles. This neuromuscular (nervous/muscular) disorder leads to the inadequate functioning of the muscles. This is because the motor nerve cells in the spinal cord and the lower part of the brain — the so-called brain stem — die away. Because of this, the signals from the brain no longer arrive at the muscles. The brain can then no longer trigger muscle movements.”

AS Amyotrophic Lateral Sclerosis