Originally Posted by John E

For me, his Parkinson's diagnosis puts a different perspective on his story. He reportedly felt that gradually losing the ability to ride a bicycle would eventually rob him of his favorite way to keep his spirits up.

Robin Williams chose one way to deal with PD; Michael J. Fox and Davis Phinney have chosen another, and I am not in any position to judge either course of action or to know what I would do in a similar situation. For me, it is all about individual freedom of choice.