Dirty Hair = Clean Air

Hippies are lovable, hairy, and the reason you can get soy milk at most coffee shops. While the world needs all the help it can get, hippies usually need a bath. But now they finally have science on their side. A study, conducted at the University of Missouri, tested 16 hair samples, eight washed and eight unwashed, over a 24-hour period. Researchers found that the un-shampooed samples were able to absorb seven times as much ground level ozone as the cleaner strands. While ozone exposure is attributed to respiratory problems and a rise in deaths, unwashed hair usually leads to a decrease in sex appeal. So, we’re torn between our lungs and our looks — guess it all depends on if you want your breathing to be just as shallow. [New Scientist]