Michael J. Fox has long lived with complications from his Parkinson’s disease battle, but he remains as stubborn as ever in the face of great difficulty.

Since his diagnosis in the early 1990s, the now-retired actor has become the face of the struggle against the crippling disease, dedicated himself to encouraging research and understanding.

Recently, the Back to the Future star has spoken openly about his difficulties with the condition, acknowledging that his health is deteriorating and declaring that he does not expect to live to be 80 years old.