WHEN COUPLES START TO LOOK ALIKE
University of Michigan psychologist Robert Zajonc analyzed photographs of couples taken when they were newlyweds and photographs of the same couples taken 25 years later.
The results showed that the couples had grown to look more like each other over time. The happier the couple said they were, the more likely they were to have increased in their physical similarity.
Zajonc suggested that older couples looked more alike because people in close contact mimic each other’s facial expressions. In other words, if your partner has laughs a lot, he or she will probably develop laugh lines around their mouth — and so will you.
Other evidence has also shown that men and women may be initially attracted to partners with similar personalities.
It turns out we may even be hard-wired to fall in love with people who have similar DNA. In a study of twins, University of Western Ontario scientists found that not only did participants tend to pick partners with similar genes; the spouses of the identical twins were also more alike than the spouses of non-identical twins.
Couples may start to look like each other because in some ways they already are like each other.