Astronaut Rich Clifford was diagnosed with Parkinson 's disease in 1995 . You may do things slower , or you may not be able to do things you once did as easily . It did n't stop him from going on a third space flight and completing a mission . Clifford kept his illness a secret for many years .
Astronaut Rich Clifford was diagnosed with Parkinson 's disease in 1995 . It did n't stop him from going on a third space flight and completing a mission . Clifford kept his illness a secret for many years .