Here's something completely novel: a college professor who is obsessed with his work. Usually Ph.Ds are the kinds of people who can keep sensible hours and leave their work behind at the end of the day -- not the kind of people who ignore everything for research. Not at all.

Dr. Ryuta Kawashima, whose theories about brain exercise (along with his head) make up the basis of Brain Age, isn't that into video games himself -- not even the ones he's literally in. "To hear this may put you off -- but my hobby is work," adding that even if he had time for things like exercise, he would prefer to use the time for research.

His obsession with his own research continues into his family finances. While Kawashima is entitled to split royalties from the game 50/50 with his employer, Tohoku University, Kawashima has not taken any of the money. Instead, he is in the process of building two state-of-the-art laboratories for the university's Institute of Development, Aging and Cancer.

"Everyone in my family is mad at me but I tell them that if they want money, go out and earn it." And it's hard to argue that he's being selfish when the money is going to cancer research. That's got to be hard for the family to argue.