Why Do Couples Look Like Each Other?

This is just as impressive as the 'cocktail party effect': our ability to tune our attention to just one voice from a multitude- to separate one conversation from another.

(NY Times) Long-Married Couples Do Look Alike, Study Finds

SCIENCE is lending support to the old belief that married couples eventually begin to look alike.

Couples who originally bore no particular resemblance to each other when first married had, after 25 years of marriage, come to resemble each other, although the resemblance may be subtle, according to a new research report. Moreover, the more marital happiness a couple reported, the greater their increase in facial resemblance.

The increase in facial similarity results from decades of shared emotions, according to Robert Zajonc, a psychologist at the University of Michigan, who did the research.

In the study, people were presented a random array of photographs of faces, with the backgrounds blacked out, and were instructed to match the men with the women who most closely resembled them. Two dozen of the photographs were of couples when first married; another two dozen were of the same couples 25 years later, most taken around the time of their silver wedding anniversary.

(See the original article here)

Also see Why You Should Say “I Love You” in their Left Ear, Micro-expressions and Do Some People Feel the Need to Amputate Healthy Limbs?

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