Kevin Hill, 65, used to suffer sleepless nights due to his harrowing Parkinson's disease symptoms. Now, he forgets about his illness for "days and days."

In 2017 he visited his GP and was diagnosed with Parkinson's. He was told there were medicines but no cure, but there was a new treatment – deep brain stimulation (DBS) – and tests proved he was suitable for the surgery. It involved an implant that runs deep into the brain to an area the size of a grain of rice.

A brain implant has allowed a Parkinson's patient to "forget about" his debilitating condition for days at a time. Kevin Hill, a 65-year-old from Sunderland, received a computer-controlled device in his chest wall,