Psychologists in Canada have proven that
the mere sight of an attractive woman can induce men to act irrationally, impulsively. Candidates of both sexes were shown images of people's faces, ranked in terms of attractiveness (and taken from amihotornot.com), and then offered a choice between a small amount of money tomorrow or a larger one at some variable time in the future; men who saw images of highly attractive women were more inclined to go for the smaller reward available the next day (an irrational behaviour, much like those exhibited by drug addicts). Female candidates showed no difference in their behaviour when shown images of attractive or unattractive men.
Who would have thought that 'Am I hot or not?' would become a research tool...