Euphoria and former Grey’s Anatomy star Eric Dane offered a “sobering” update on his health after being diagnosed with amyotrophic lateral sclerosis, or ALS. The actor opened up on Good Morning America about losing mobility in both of his hands,

Eric Dane, a cast member in the HBO drama series "Euphoria," poses at the premiere of the series at the ArcLight Hollywood, Tuesday, June 4, 2019, in Los Angeles. (Photo by Chris Pizzello/Invision/AP) Chris Pizzello/Invision/AP

Eric Dane is not backing down from his fight against ALS. The 52-year-old sat down with ABC News' Diane Sawyer in an interview for Good Morning America, where he revealed his first symptoms of the debilitating disease and how he plans to slow the effects.