Interesting. Thanks for posting.
There is so much about what makes humans function that remains unknown or barely known.
Did you know we have three brains; Head, Heart & Gut.
*Head brain analyzes info and applies logic.
* Heart brain senses the world through emotion and feelings.
* Gut brain is used to understand our identity, and who we are in the world. The Gut brain helps us learn self preservation by teaching us to follow our instinct. ie.
“Gut feelings”.
My reference: Karen Jensen ND. posted 2017.
But can they still play the piano?
The excerpt is unclear. Can they not float anymore - or can they not swim anymore?
About 10 years ago, a neurologist in Holland discovered that about 20% of his Parkinson patients with severe walking impairments could still ride a bike around a jogging track.
Those patients did need assistance mounting, dismounting, and stopping the bike, but once they got some speed up, they could maintain their balance indefinitely.
Inquiring minds want to know...WHY?