The study, published in the Personality and Social Psychology Bulletin this month, noted that humans are punished more harshly for choosing the wrong partner (i.e. "death, disease, infertility") than they are rewarded for selecting a quality mate (i.e. "living incrementally longer, having incrementally healthier offspring").
In one of the study's surveys, 5,541 participants, ranging in age from 21 to 76, were asked: "When considering a committed relationship with someone, which of the following would be deal-breakers to you?"
The researchers found that, since women have more at stake (i.e. the potential to bear children) than men do, they're more selective. They don't want to get pregnant then left alone, or worse, with a dud.
Here are the top five deal-breakers for both men and women:
Percent who said they wouldn't date a person who ...
... has a disheveled or unclean appearance.