It all started with Dr Kawashima's Brain Training: How Old Is Your Brain? in Europe last summer. Since then, over 10 million people globally are currently including the brain training game in their daily lives. Thus, the developer thought to deliver even more content in Dr Kawashima: How Old Is Your Brain? featuring all new exercises and DS Brain Age Checks More Brain Training from Dr Kawashima: How Old Is Your Brain? uses the same format as its predecessor. ... (read more) Read »