Some people encourage their elderly parents to play mahjongg, both for its social side and because shuffling and drawing the tiles stimulates nerves in the fingertips and helps prevent senile dementia.
還有人鼓勵年紀大的父母去打牌，理由是，有一定的社交，而且洗牌、摸牌，可以刺激手指末梢神經，有助防止老人癡呆症，不是一舉兩得？