Michael J. Fox Says Parkinson's Battle Is Worsening and He Doesn't Expect to Live Past 80

Michael J. Fox talked about living with Parkinson's disease in an upcoming "CBS Sunday Morning" interview.
Fox said his illness is progressing and making everyday activities more difficult.
He revealed that he has broken several bones from falls caused by his Parkinson's disease.
Fox launched a foundation in 2000 to fund Parkinson's research and spread awareness.
The full interview with Fox will air on April 30.