He's famous as a really good geo-guesser (a game where people get random google streetview images and try to drop a pin as close to the coordinates as possible).
People give him challenges all the time, and it's really impressive.
Here he is finding someone's location based on a picture taken from a plane.
It could be a bit of both, but in general I recognized after a certain point that the only one affected by my stress level is me, not the thing in the news. I'd also credit having a career where you have to get really good at controlling what you let affect you.