The PS Factor by Dr. Thomas Crook III, Ph.D.

Basically this book is a long sales brochure for PS (phosphatidylserine). However, it does have some good memory tricks, tests, and exercises. It claims that a 65 year-old who trains using their guidelines (and product) will remember better than an untrained 25 year old.
As we grow older, our ability to remember things, like [...]