I'm not certain if the analogy that news is bad for you is true. I've heard this multiple times from multiple people and practiced going on a news diet (temporarily) even though I'm used to being on top of what's happening.
What I ended up realizing was that the news wasn't really affecting me, because, what I was reading was not the crap about celebs, gossip and other nonsense, but actual stuff around me that was having an impact on the world.
I don't know if I could go on without reading about the Arab Spring, or the Nuclear tests in North Korea, even though they don't directly impact me or my daily life.