I know some people will think it is morally wrong of me to not be interested in the world and society. In fact, I used to think as much too, and thought myself terribly clever because I had an Economist subscription.
The fact is that I _am_ interested in the world and society, but all I found that keeping up with hour-by-hour events did was stress me out. I don't need to hear about plane crashes, or tedious political events.
The only place where I come across news stories now is occasionally on HN, and when talking to other people.
Because I am no longer addicted to the news, I am less stressed, and have more time to do the things that make me calm, happy, and fulfilled, rather than stressed.
I doubt that my "living under a rock" policy will be permanent - in the future I might develop a better capacity to deal with the stress of current affairs - but for now it is definitely helping me.