Michael J. Fox has long been living with complications brought on by his battle with Parkinson’s disease, but he remains as defiant as ever in the face of extreme adversity.The now-retired-actor has become the face of the fight against the debilitating disease over the years, committing himself to promoting researching and understanding since first being diagnosed in the early ’90s.

Of late, the Back to the Future star has spoken candidly on his struggles with the condition, admitting that his health is declining and claiming that he doesn’t think he’ll live to see 80 years old.