A hospital in Bristol is believed to be the first in the world to implant the smallest device into a brain to reverse the symptoms of Parkinson’s disease.  

Southmead Hospital surgeons used a tiny Deep Brain Stimulation (DBS) device to override abnormal brain-cell firing patterns caused by Parkinson’s.  

Tony Howells, the first person to receive the treatment as part of a trial, said the impact was “amazing”.  
Twenty-five patients have been selected for the trial that concludes next year.  

Currently there is no cure for Parkinson’s disease, which leads to parts of the brain becoming progressively damaged over years.  
Source : BBC