Grey's Anatomy star Eric Dane says one area of his body has 'completely stopped working' following his ALS diagnosis. The actor, 52, broke the news of his devastating health battle - which stands for amyotrophic lateral sclerosis, but is sometimes known as Lou Gehrig's disease - back in April.

“Grey’s Anatomy” star Eric Dane revealed he is slowly losing mobility due to his ALS. During his sit-down interview for “Good Morning America” with Diane Sawyer, Dane said he is losing function in his limbs.

Former “Grey’s Anatomy” star Eric Dane is dealing with some major side affects amid his ongoing battle with ALS. “I have one functioning arm,” the 52-year-old said in an interview with Diane Sawyer that aired Monday on " Good Morning America ." “My right side [has] completely stopped working,” Dane said.