Now, however, the actor has shared a few more sobering updates about his health on Good Morning America. “My right side has ...

ALS, short for amyotrophic lateral sclerosis, is a degenerative neurological disorder that eventually leads to paralysis, taking away a person's ability to move, speak, swallow or even breathe, ...

Dane -- who shot to fame amid six seasons on the hit ABC drama "Grey's Anatomy," where he played Dr. Mark Sloan, ...

Dane revealed that his battle with ALS has left him with only one functioning arm. Photo: XThe man once known to millions as ...

The 'Grey's Anatomy' and 'Euphoria' star says he only has one functioning arm: "My right side has completely stopped working" ...