It's difficult to know how to truly keep your brain sharp as you age in a world full of opposing viewpoints. Contrary to popular belief – and despite the efforts of big business – researchers have found little evidence to support the idea that exercises such as virtual brain games or training activities are beneficial to your brain. But, if brain games are a sham, what can you do to keep your brain in peak condition? What is the solution? Performing on a musical instrument. Learning to play an i