6. Selfishness
Search Scale: 10/10
Solution: Others before yourself.
This one goes along the same lines as the seventh on the list of 10 most important problems and issues in America. It’s why marriages suffer, why Snapchat skyrockets and why Toddlers & Tiaras is a thing. It’s why in 2013, 34,924,648 photos were posted with the hashtag #selfie. Just ask Popular Science.