Why News Junkies Are So Glum About Politics, Economics, and Everything Else(theatlantic.com)
theatlantic.com
Why News Junkies Are So Glum About Politics, Economics, and Everything Else
http://www.theatlantic.com/business/archive/2016/07/why-news-junkies-get-are-so-glum-about-politics-economics-and-everything-else/492989/?single_page=true
Which isn't surprising. People care more about bad news than good news, hence the former gets the most clicks/reads for journalists.
And so it makes those who read more news into more negative people.