By Scientific American 8/8/2012
“…So, the team took college men and had half of them perform a stressful task unrelated to food or money which raised their cortisol levels. They then asked the stressed and unstressed men to take a look at some images of women, and rate their attractiveness. …”
Read the entire article: http://blogs.scientificamerican.com/science-sushi/2012/08/08/stressed-men-like-bigger-butts/