As if I haven’t mentioned enough reasons why you should be dancing, here’s another one. A study by the Albert Einstein College of Medicine discovered that dancing reduced the risk of dementia more than any other physical activity, including cycling, golf, swimming and tennis. Apparently both the mental effort of learning new dance steps as well as the social interaction helped reduce the risk of dementia.
Sudoku and crossword puzzles are also reputed to be beneficial toward keeping dementia at bay. However pen and paper puzzles lack the awesome music and the people watching opportunities of the dance floor. Besides you're more likely to meet that special someone on the dance floor than noodling over a crossword.