Avatars are a way to express our true selves, our most heroic, idealized version of who we might become.

I've been running since high school. My boyfriend was on the track team, and I'd run with him.

When we play games, our brains respond differently to stress and obstacles. We're better able to control our attention and ignore distractions.

My goal for the next decade is to try to make it as easy to save the world in real life as it is to save the world in online games.

Scientists have demonstrated that dramatic, positive changes can occur in our lives as a direct result of facing an extreme challenge - whether it's coping with a serious illness, daring to quit smoking, or dealing with depression. Researchers call this 'post-traumatic growth.'

When we play a game, we tackle tough challenges with more creativity, more determination, more optimism, and we're more likely to reach out to others for help.

There is no problem that doesn't have some underlying need for more optimism, stamina, resilience and collaboration. And games are, I believe, the best platform we have for providing that.