This is an inspiring video narrated by longtime TV broadcaster Diane Sawyer. It is about amazing benefits of bicycling or pedaling for people with Parkinsons. One fellow with Parkinsons went with a friend on a fifty mile bike ride and his hands had stopped shaking. Others, after pedaling are able to dance... Pretty good thing to know about...

It's here:
https://www.facebook.com/Robert.TanSB/videos/10153446178568621/