My father-in-law loved crossword puzzles. I have fond memories of him sitting at the kitchen table working away on the daily crossword puzzle. Every now and then he would get stuck and ask my help. I usually had no clue, but occasionally, the synapses would fire just right, and I would get an answer correct- a great “a-ha!” moment that really did feel like it woke up my brain. I have no doubt that his daily battle with the Post puzzle is what helped his mind stay so fit throughout his life.