Scientists learn that rock stars party hard and teens buy stuff to feel cool. Well, duh. But there's more insight behind these findings than you might think.

Launch the gallery here to learn why exactly materialistic teens are insecure, vacations are better sans cell, loneliness sucks and more.

And if you have a hankering for more of the obvious, check out Laura Allen's weekly column here, where you can also subscribe to an RSS feed.