Thinks about this.. Better yet, think about nothing at all, just focus on whatever sensations are around you–noise or light or nothingness. Because no thought at all, it turns out, is good for your brain. The Harvard Gazette reports that researchers at Harvard, Yale, and the Massachusetts Institute of Technology have found that meditation can alter the physical structure of our brains, increasing the thickness in parts of the brain that deal with attention and processing sensory input.The Gazette reports that when researchers compared brain scans of 20 experienced meditators (who did Buddhist insight meditation) with those of 15 nonmeditators, they found that those most deeply involved in the meditation showed the greatest changes in brain structure. Next question: Since this type of meditation counteracts the natural thinning of the thinking surface of the brain, could it play a role in slowing – even reversing – aging? More non thinking is needed. Read more in the Harvard Gazette.