Why doctors say playing ping-pong could help manage Parkinson's disease symptoms

When 67-year-old Roben Seltzer was diagnosed with Parkinson's disease three years ago, his symptoms were so bad he could barely get out of bed. He was treated with physical therapy and medication to manage symptoms like tremors, stiffness and slowness.

His doctor also offered him a surprising treatment option: ping-pong. 

"Ping-pong has clearly been shown to have a positive impact on the progression of the disease and in a way that the medication alone is not doing," said Dr. Elana Clar, a neurologist at Hackensack University Medical Center in New Jersey.