https://www.batfoundation.com/research-and-development/

Studies carried out in 1998 in Japan explored the potential of Table Tennis as an effective therapy in the reduction of cognitive decline and the ability to delay onset symptoms in the early stages of Alzheimer’s. The trials showed table tennis activated up to 5 portions of the brain in the Alzheimer’s subjects during play. In the light of the positive outcome, the study’s deliverers designated Table Tennis as the World’s Number One Brain Sport.