Amyotrophic lateral sclerosis (ALS), often referred to as "Lou Gehrig's Disease," is a progressive neurodegenerative disease that affects nerve cells in the brain and the spinal cord. Motor neurons reach from the brain to the spinal cord and from the spinal cord to the muscles throughout the body. The progressive degeneration of the motor neurons in ALS eventually leads to their death. When the motor neurons die, the ability of the brain to initiate and control muscle movement is lost. With voluntary muscle action progressively affected, patients in the later stages of the disease may become totally paralyzed. Ashton Irwin starts to trip or fall over nothing. Him and the rest of his band go to get bloodwork done and find out he has motor neuron disease. copywrite belongs to @calexislyfe 2015 note: copy this book or claim it as your own i will find you and hurt you