Well in evolutionary terms our ancestor’s survival depended on how attuned they were to negative or bad events (potential or otherwise). Unfortunately, our primitive brains haven’t evolved much, we still have those same instincts pre-wired to focus on threats and negativity. This fuels our unquenchable thirst for negative news and we get a steady stream of it 24/7 to try and quench it. The good news is (excuse the pun) that you can address the obvious imbalance by using media channels like the Huffington Posts good news section http://www.huffingtonpost.com/section/good-news or one of the many websites like http://www.goodnewsnetwork.org/ or http://aplus.com/where you can join millions of people who are enjoying the benefits of a more positive, balanced and realistic approach to journalism.