Today's NYT has an article on a mathematician's analysis on why we are getting fatter....(it's because we have cheap, plentiful food)....
http://www.nytimes.com/2012/05/15/science/a-mathematical-challenge-to-obesity.html
omni
http://www.nytimes.com/2012/05/15/science/a-mathematical-challenge-to-obesity.html
omni