From solving puzzles to eating the right foods, here's how to keep your grey cells in good shape. While there is no fountain of youth for the brain, there is always the next best thing. There is lots you can do right now to preserve, protect and enhance your gray matter. One hint: If you are already a devotee of a heart-healthy lifestyle, you are already on the right track. What is good for the heart is probably good for your head. And that is a great motivator! Here's food for thought's and memory. Although we are what we eat, our brains also respond to our surroundings and the activities we indulge in. Apart from foods, certain lifestyle habits too can give your brain a boost. Follow this food strategy: Keep unhealthy fats to a minimum. Sticking to a diet involving lots of fresh fruits and vegetables, a minimum of red meat, plenty of fish and the occasional red wine is very important. Brains are made up of about 60 per cent fat, but the fuel they rely on is glucose, a sim...