I used to teach a class - well, several actually - that had as one tip to not watch the news. It was, specifically, television news, but the effect is the same.
The idea behind it was that if anything really important was going on, you'd find out about it one way or another (like your friends and OWS). The upside was that, if you were easily affected by the news since it's mostly bad news, you'd be better off not paying attention.
In reality (not including NPR), news outlets are out to make money, not report the news. The old newsroom cliche of "if it bleeds it leads" is unfortunately, highly accurate. Newspapers are a little better because the additional news is there if you get past the first few pages, but the majority of what they expect folks to read is super negative.
I know there's the debate about free-ranging kids, and I'm certainly not going to get into it here, but the idea behind it is that, despite what we see on the news, the world is not really that scary of a place - it's just made to look that way to sell advertising.
I don't watch television news. I read it online - I can pick and choose what's important to me without getting too bogged down in the small miseries they try to blow out of proportion (are there snakes living in the walls of your home? are your children at risk from slippery floors at their schools? tune it at 11 to find out!).
It took me quite a while to figure out what was going on at Penn State simply because I don't follow sports and it looked like a sports story for a long time. Once it stuck around a week or more, I realized there was probably something more to it and finally got informed.
It's a conscious decision I've made - you may be wondering more about the folks who simply can't be bothered to pay attention to anything but reality TV and their children's sports teams...