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Do Couples Look Alike?

Couples who have lived together for a long enough time may start to look similar. Higher resemblance was also associated with greater reported marital happiness. One explanation of this is based on a theory of emotional efference, which suggests that emotional processes produce vascular changes. These changes are partly regulated by facial musculature.

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Key Facts In This Video

  1. Assortative mating refers to how people tend to couple with individuals who are similar in genetics, behavior, and appearance. 00:42

  2. People born in the same geographical area are more likely to marry and share genetic markers. 01:11

  3. Education level is at least partially tied to genetic makeup. 01:33

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