Yes, those computerized brain-training games seem like a cool idea. They are based in large part on clear evidence that living in an enriched environment with lots of mental stimulation produces positive brain changes. And we agree there’s huge potential for tapping into your own neuroplasticity (that is, the brain’s ability to change itself by remodeling nerve cell connections after experience) to enhance mental fitness and prevent age-related memory decline. The well-established benefits of early life education on reducing later risk for dementia has also given much credence to the theory that building a greater cognitive reserve capacity can help the brain compensate for injury—analagous to the concept that more cell phone towers equals fewer dropped calls. Furthermore, several brilliant neuroscientists have, in recent years, served as the designers of the best brain games on the market.