ALS, sometimes called Lou Gehrig’s disease, is a progressive, invariably fatal neurological disease that attacks the nerve cells (motor neurons) responsible for controlling voluntary muscles. The sequence of emerging symptoms and the rate of disease progression and related limitations vary from person to person. Eventually, however, all muscles under voluntary control are affected and the person loses the ability to move his or her arms and legs, and to swallow, speak, and breathe.
There is no cure for ALS. Treatments such as medications, breathing support, speech and physical therapy, and nutritional support can slow disease progression and manage symptoms.