The San Francisco-born star of ‘Grey’s Anatomy’ and ‘Euphoria’ has been on Good Morning America this week to discuss the frightening realities of amyotrophic lateral

Dane -- who shot to fame amid six seasons on the hit ABC drama "Grey's Anatomy," where he played Dr. Mark Sloan, affectionately known as "McSteamy" -- said his symptoms began over one year ago, when he began to experience weakness in his right hand.

Eric Dane told Good Morning America’s host, Diane Sawyer, about the experience he had before his diagnosis. He said he was experiencing weakness in his right hand, but credited it to being tired. Also,

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.

Eric Dane and his doctor discussed his ALS diagnosis, symptoms and the rise in causes during an emotional 'Good Morning America' interview

In a June 16 interview with Good Morning America's Diane Sawyer, Eric Dane opened up about his reconciled relationship with wife Rebecca Gayheart. The 'Euphoria' actor said they have "managed to become better friends and better parents,

The former “Grey’s Anatomy” star, who was recently diagnosed with ALS, recalled the dramatic episode when he realized he “couldn’t swim.”