Celebrity Health

Pawn Stars' "Old Man" Dies After Long Battle with Parkinson's Disease

Parkinson's is very common. But there still needs to be more awareness and research.

Parkinson's disease is the second-most common disorder in the United States. The disease affects approximately one million people in the United States today, and over 10 million people worldwide. Parkinson's disease is also a highly individualized disorder as no two cases would ever be the same.

The cause for Parkinson's disease is still unknown, but researchers and experts believe that the disease is caused by both genetic and environmental factors.