Add Yahoo as a preferred source to see more of our stories on Google. Research shows that crossword puzzles are effective in improving memory. (Getty Images) (artisteer via Getty Images) There is no ...

The brain reveals in seconds how you interpret others, revealing patterns that explain social adaptation and decision-making.

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Doctors have recommended for years that people play brain games like puzzles and Sudoku to try to keep ...