How much does "good hair" matter? A lot, our genes suggest, but why? Find out: http://hvrd.me/XFsmig - includes 7min video
9:48 AM - 14 Feb 2013
0 replies
3 retweets
4 likes
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.