The number of babies born to teens annually fell by 38.4% between 2007 and 2013, and while these numbers are obviously celebrated, the reasons for the drop remain a mystery. It is possible that a “perfect storm” of cultural, educational, and economical factors is responsible: Researchers point to high unemployment creating a climate that breeds more cautious behavior in teens, innovative sex-ed programs, and TV shows like Teen Mom as possible factors. The release of the iPhone may even receive some credit by making information on the internet more accessible, as well as driving kids to hang out less in real life. (Vox)