SFU researcher suggests shorter and wider faces are associated with an interest in casual sex

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      Here's a Family Day/Valentine's Day story that I never expected to see in my in-box.

      Today, Simon Fraser University issued a new release about two studies by several academics, including SFU psychology researcher Brian Bird.

      Published in the Archives of Sexual Behavior, the studies drew links between facial width-to-height ratio and a person's sex drive, sociosexuality, and intended infidelity.

      It was based on surveys of undergraduate students.

      One of the findings was an association between shorter and wider faces and higher sex drives in men and women.

      The researchers also concluded that shorter and wider faces were also associated with an interest in casual sex, as well as an intention among men to be unfaithful to their partners.

      The height of the face was measured from the lip to the upper brow.

      "Past research shows that the facial-width-to-height ratio predicts dominant types of behaviour, such as aggression,” Bird stated in the news release. “Some researchers speculate that during critical life periods like puberty, a rise in testosterone may influence the development of this facial structure, as well as the organization of neural circuitry that underlies dominant behaviours.” 

      Bird noted that testosterone is not only relevant for dominant behaviour, but also for sexual activity.

      "This is the first study to see if this facial metric correlates with variables that are important for mating psychology in men and women," he said.