I'm a long time fan of his films. He's only 67 yo.
https://www.reuters.com/lifestyle/bruce-willis-retire-acting-after-medical-diagnosis-2022-03-30/
Bruce Willis, the star of the "Die Hard" franchise and dozens of other action movies, will retire from acting after being diagnosed with aphasia, a disease that has hampered his "cognitive abilities," his family said on Wednesday.
https://www.reuters.com/lifestyle/bruce-willis-retire-acting-after-medical-diagnosis-2022-03-30/