The hoary stereotype of avid video gamers as pasty shut-ins missing out on the world is already passé—too many of the people making things happen in today's high-tech world are gamers themselves for that image to survive. But skeptics continue to raise doubts about the wholesomeness and healthiness of video games. They can be addictive, scary articles warn us with…well…compulsive regularity. They can even make you scary—and violent! Yeah. Maybe. But they can also be good for your brain, and even fend off senility. J.D. Tuccille highlights research that shows the brainy benefits of playing games.