http://hajen.livejournal.com/491803.html

"Sons are tough on their mothers. Whether it is heavier birth weights, amplified testosterone levels or simple, hair-raising high jinks, boys seem to take an extra toll on the women who gave birth to them. And by poring over Finnish church records from two centuries ago, Virpi Lummaa of the University of Sheffield in England can prove it: sons reduce a mother’s life span by an average of 34 weeks..."

(via MeFi)

Published by :hajen 2007-10-20 23:55:04.0