This squib, which I ran across quite by accident in a book on substance abuse, hardly requires comment:
A recent study at the University of Glasgow found that alcohol makes the opposite sex appear more facially attractive, at least in the eyes of the drinker. Compared to abstainers, drinkers were more likely to rate someone of the opposite sex as attractive. Alcohol had no effect on the rating of same-sex attractiveness. This may explain why drinking in bars and at parties often leads to sex.
What would we do without social science?