High Quality Content by WIKIPEDIA articles! Brain Age: Train Your Brain in Minutes a Day!,JPN also known as Dr. Kawashima`s Brain Training: How Old Is Your Brain? in PAL regions, is an entertainment video game that employs puzzles. It was developed and published by the video gaming company Nintendo for the Nintendo DS handheld video game console. Nintendo has been careful not to claim the game has been scientifically validated, however stating that it is an "entertainment product `inspired` by Dr. Kawashima`s work in the neurosciences."