The star's fall aggravated an injury he sustained in a quad-bike crash in 2003, affecting his ability to walk
Parkinson’s disease
The Black Sabbath rocker has endured the flu, had multiple hospitalizations, neck surgery & was diagnosed with Parkinson's in recent years
It comes after last February saw the rocker suffer a horror fall in the home he shares with his wife, leaving him requiring surgery
The results of the research show preliminary proof that the debilitating disease could start in the gut
The results were published in The Lancet Neurology