Doctors say clinical trials are needed to understand more after Ed Patrick identified a potential side effect of a Parkinson's drug.
Philip Tindall, who was diagnosed with Parkinson's in 2003, captained Otley Rugby Club from 1972-73.
Patients say playing table tennis at a Brighton club helps improve movement, mood and confidence.
Barbara Carolan, 71, says learning skills from the martial art has changed her life.
David Treasure set off to walk 90 miles by his ninetieth birthday for Parkinson's UK in January.
The challenge was inspired by Ciaran Booth's mother, who has Parkinson's disease.
The singer also reveals she has received treatment for skin cancer, but vows to keep singing.
