DS-X2 has some additional information on the forthcoming Brain Age: Train Your Brain in Minutes a Day. The upcoming title aims to energize your mind through various minigames and improving your overall "brain age."
"When users start a new game, they will take a series of tests and get a score that shows how old their brains are. This number is called the "Brain Age." As they use the software over a series weeks and months, their mental acuity will improve and the Brain Age will drop, indicating a younger, healthier brain. Progress is charted in graph form."
Also included is a list of some of the minigames included in Brain Age. Such tasks charged to the player are memorizing words, quickly counting people in a crowd, and reading classical literature aloud as fast as possible.