Yes , as the disease progresses I have had to change the way I do certain activities , but I continue to do them . Clifford was diagnosed with Parkinson 's disease in 15 years . It did n't stop him from going on a second shuttle mission and completing a spacewalk . Astronaut Rich Clifford kept his illness a secret for 1995 .
Clifford was diagnosed with Parkinson 's disease in 15 years . It did n't stop him from going on a second shuttle mission and completing a spacewalk . Astronaut Rich Clifford kept his illness a secret for 1995 .