The long held view that you are losing it once you step into the forties is being turned on its head. In fact, not only are the middle aged not losing it, they can refurbish their brain with practice and patience. The old view that 40% of your brain cells are lost has been laid to rest. So for the forty somethings, the fifty somethings and the sixty somethings there is enough to rejoice. Barbara Strauch writing in New York times talks about Dr Burke's research on 'tots' or tip-of-the-tongue phenomena and I quote: One explanation for how this occurs comes from Deborah M. Burke, a professor of psychology at Pomona College in California. Dr. Burke has done research on “tots,” those tip-of-the-tongue times when you know something but can’t quite call it to mind. Dr. Burke’s research shows that such incidents increase in part because neural connections, which receive, process and transmit information, can weaken with disuse or age.