It might make intuitive sense that the more you use your brain – engaging in activities like problem-solving and complex learning – the better it will continue to function as you age. We tend to think of exercising the brain in the same way as physical exercise: the less physically or mentally active you are, the more strength and ability is lost. In other words: use it or lose it. This idea, long regarded as simple common sense, may now have been verified by science. Researchers at Iowa Stat...
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