Following their discussion, John said he was looking to the future.
He added: “The fact that I’ve had an early diagnosis, the fact that I’ve seen what happened to my mother firsthand is all a big bonus in many ways, because it enables me to look at it practically, realistically and plan sensibly for the future.”
The full film is now available to watch on BBC iPlayer.
If you, or someone you know, have been affected by Parkinson’s Disease, Parkinson’s UK offer confidential advice, information and support to those living with the condition, their families and carers. Contact their helpline on 0808 800 0303 or visit their website for more information here.