The Secret Life Of The Grown Up Brain The Surprising Talents Of The Middle Aged Mind can be very useful guide, and the secret life of the grown up brain the surprising talents of the middle aged mind play an important role in your products. The problem is that once you have gotten your nifty new product, the the secret life of the grown up brain the surprising talents of the middle aged mind gets a brief glance, maybe a once over, but it often tends to get discarded or lost with the original packaging.