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When you play a videogame, you could be a completely different person than you are in the real world, certain aspects of the way your brain works can be leveraged for something you could never do in the real world.

I do love video games. But after a while, you feel like you really need to get up and do something.

There isn't quite a feeling you get from playing video games that you get when you're playing sports, which is like a sense of euphoria. You just get the satisfaction of doing something active and feeling good after.

There are big lines between those who play video games and those who do not. For those who don't, video games are irrelevant. They think all video games must be too difficult.

Videogames make you feel like you're actually doing something. Your brain processes the tiered game achievements as real-life achievements. Every time you get to the next level, hot jets of reward chemical coat your brain in a lathery foam, and it seems like you're actually accomplishing stuff.

I spoke at TED Global 2010 about the ways that video games engage the brain, and in particular, the idea of reward structures: how a challenge or task can be broken down and presented to make it as engaging as possible.

I don't play video games.

Games lubricate the body and the mind.