Night Owls and Early Risers Have Different Brain Structures

If our preferences for sleep and wake times are strongly influenced by genetics and biology, what are we to do when faced with inclinations that don't match up with the demands and responsibilities of our lives?

via Health News Headlines - Yahoo! News http://www.huffingtonpost.com/dr-michael-j-breus/night-owl-sleep_b_4276411.html?ncid=txtlnkusaolp00000592