CBS Sunday Morning shared a clip from this weekend’s upcoming interview between actor Michael J. Fox and Jane Pauley that offers a look into Fox’s daily life with Parkinson’s Disease. 

The beloved performer was diagnosed with the degenerative disorder at the young age of 29. At his current age of 61, he said that dealing with the ailment, for which there is no cure, is getting increasingly difficult, and that he can’t imagine living to the age of 80.

Though the full interview promises moments of optimism, like Fox discussing how his organization, the Michael J. Fox Foundation For Parkinson’s Research, just announced a major breakthrough for detecting the disease with a biomarker prior to the onset of symptoms, the clip CBS released is tough to watch.

Fox explained how he’s still getting through his day-to-day (“my life is set up so I can pack Parkinson's along with me if I have to”) but understands this is temporary.

“It's banging at the door,” he said. “I'm not gonna' lie, it's gettin' hard. It's gettin' harder. It's gettin' tougher. Every day it's tougher. But, but, that's, that's the way it is. I mean, you know, who do I see about that?” the Back to the Future star said.

He further revealed that he’s had spinal surgery for a tumorous growth, which led to difficulty walking. This led to some falls, which meant broken arms. “[I] broke this arm, and I broke this arm, I broke this elbow. I broke my face. I broke my hand,” he says in the interview. 

When Pauley asked about him falling, Fox explained that “[falling] is a big killer with Parkinson's. It's falling … and aspirating food and getting pneumonia. All these subtle ways that gets ya'. … You don't die from Parkinson's. You die with Parkinson's. So – so I've been – I've been thinking about the mortality of it. … I'm not gonna be 80. I'm not gonna be 80.”

On May 12, Apple TV+ launches the documentary Still: A Michael J. Fox Movie, which debuted at Sundance this year. Directed by Michael Guggenheim (An Inconvenient Truth, It Might Get Loud), the film tells Fox’s story from teen star to medical research advocate, mixing in home footage. Critics have praised the film for its humor and honesty, portraying Fox’s “suffering and resilience without turning him into a martyr," and Fox’s demeanor ensuring the project into something that is “a lot more entertaining than you might think.”