The former "Grey's Anatomy" actor shared details of the progression of his symptoms and the emotional toll of living with the neurological disease.

When a longtime Minnesota lawmaker died after a battle with ALS, former state House Speaker Melissa Hortman helped pass historic legislation in search of a cure.

High-dose dazucorilant patients who went into the open-label extension saw an 84% lower risk of death over those who didn't take it at all..

Casey Harrell spent years as a climate activist, speaking out at public events and policy meetings. Then he lost his voice to ALS (amyotrophic lateral sclerosis). The disease weakened the muscles in his mouth and throat until he could no longer form clear words.