Could heavy metal be good for you? Heavy metal star Ozzy Osbourne was known for his chaotic antics as much as for his music’s unique sound. But the science of metal holds some surprises.
‘Prince of Darkness’ who defined rock

Glossary
Birmingham - A major city in England. It has a population of more than one million.
Abattoir - A French word for a building in which animals are slaughtered.
Parkinson's disease - A disease that affects the brain. It causes shaking and stiffness.
Controversial - Causing a lot of angry public discussion and disagreement.
Visionary - Blake often had religious visions, beginning at age four when he saw God “put his head to the window”.
Satan - Another name for the Devil.
Authority - The power or right to give orders, make decisions, and enforce obedience.