OMG! if you found your way to this post through a search or a link then Robert was right.
I suspect this article will serve as a hub to get quite a number of links because the 'science' seems sound ... see
Robert's post on his blog.
Of course his post is filled with the odd links that are bound to get him some link love ... but I prefer to keep things totally chess-related.
What? You're looking for the Cutest Chess Pic EVER? Try this one ... Hou Yifan & Alexandra Kosteniuk: