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What’s a shared genotype between friends?

Do you find it hard to tell the difference between Katy Perry and Zooey Deschanel? They look alike, but they’re not related. Or are they? According to new research, people who look and act very similar but are not related may share DNA.

François Brunelle

“Our study provides a rare insight into human likeness by showing that people with extreme look-alike faces share common genotypes, whereas they are discordant at the epigenome and microbiome levels,” senior author Manel Esteller of the Josep Carreras Leukemia Research Institute in Barcelona said in a written statement. “Genomics clusters them together, and the rest sets them apart.”

The Internet has been a great source in being able to find look-alikes. The research team found photos of doppelgangers photographed by François Brunelle, a Canadian artist. Using facial recognition algorithms, the investigators were able to measure likeness between the each pair of look-alikes. The participants also completed a questionnaire about lifestyle and provided a saliva sample.

The results showed that the look-alikes had similar genotypes but different DNA methylation and microbiome landscapes. The look-alikes also seemed to have similarities in weight, height, and behaviors such as smoking, proving that doppelgangers not only look alike but also share common interests.

Next time someone tells you that you look like their best friend Steve, you won’t have to wonder much what Steve is like.

The secret to a good relationship? It’s a secret

Strong relationships are built on honesty and trust, right? Being open with your partner and/or friends is usually a good practice for keeping the relationship healthy, but the latest evidence suggests that maybe you shouldn’t share everything.

A chocolate muffin in an office desk drawer. bilderlounge

According to the first known study on the emotional, behavioral, and relational aspect of consumer behavior, not disclosing certain purchases to your partner can actually be a good thing for the relationship. How? Well, it all has to do with guilt.

In a series of studies, the researchers asked couples about their secret consumptions. The most commonly hidden thing by far was a product (65%).

“We found that 90% of people have recently kept everyday consumer behaviors a secret from a close other – like a friend or spouse – even though they also report that they don’t think their partner would care if they knew about it,” Kelley Gullo Wight, one of the study’s two lead authors, said in a written statement.

Keeping a hidden stash of chocolate produces guilt, which the researchers found to be the key factor, making the perpetrator want to do more in the relationship to ease that sense of betrayal or dishonesty. They called it a “greater relationship investment,” meaning the person is more likely to do a little extra for their partner, like shell out more money for the next anniversary gift or yield to watching their partner’s favorite program.

So don’t feel too bad about that secret Amazon purchase. As long as the other person doesn’t see the box, nobody has to know. Your relationship can only improve.

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