“夫妻相”真的存在吗？答案你可能想不到…

A team of researchers from Stanford University in the US put together a database of pictures of 517 couples, taken soon after getting married and then decades later. 
Using advanced facial recognition software and human judges, they showed that although long-term couples do tend to look alike, they don’t become more alike over time. In other words, this study supports the claim that we tend to choose partners who look like us.
This brings facial appearance in line with other traits – such as interests, personality, intelligence, attitudes, values and wellbeing – which show initial similarity but do not converge over time.
In a study carried out a few years ago, which was published in the journal mSystems, scientists decided to analyse the skin microbiomes of cohabiting couples and they found that living together significantly influences the microbial communities on each other’s skin.
The impact of living together on their microbial community was so strong that computer algorithms could identify cohabiting couples with 86 per cent accuracy based on their skin microbiomes alone.

The area of the body where cohabiting couples were the most alike, microbe-wise, was the feet. This is not altogether surprising as many of us will pad around our homes barefooted.