No Longer Left Behind

More research has been done recently on left-handedness, and the results are fascinating. New theories as to why 10% of the population is left-handed and 1% is mixed-handed confirm some traditional theories but dispel others. One interesting fact ~ Six of our last twelve presidents, including Barack Obama and George H. W. Bush, have been lefties: http://online.wsj.com/article_email/SB10001424052970204083204577080562692452538-lMyQjAxMTAxMDAwNzEwNDcyWj.html?mod=wsj_share_email