A growing body of research on romantic attraction has focused on the importance of altruism: Men who display helping behaviors are generally perceived as more attractive than those who don't.

who may make up the difference by trading on their looks to marry men with higher earning potential.) And some studies have shown that attractive people are more likely to be hired in a recession.

Business Insider recently published a list of ways to make yourself more attractive while doing virtually nothing to alter your physical appearance. One of the most intriguing pieces of research ...