Activity may fend off the start of memory loss
                                
                                
                                    (Newser) -
                                    Doing crossword puzzles may delay the slide into forgetfulness associated with dementia, a study shows. Researchers monitored the frequency with which a group of elderly subjects engaged in reading, writing, group discussions, playing music, playing cards, and doing crossword puzzles, and found that those who developed dementia took part in...