You may look like your sister, or even a cousin, to the point that those who don’t know you well may confuse you. It seems almost normal. After all, you have common family ties explaining similarities in your genetic baggage. But you may also have a double somewhere who is not part of your family and with whom you nevertheless have common points inscribed in the DNA and that is much more surprising. Yet this is the subject of a study conducted jointly by several universities and research institutes in Barcelona (Spain) and published in the specialist journal Cell Reports.
We might not have noticed it 20 or 30 years ago, before the internet encouraged photo sharing on a global scale, but today, finding your “double” online is becoming less difficult, even if the similarities are not always striking. Finding a look-alike is an experience all the more amazing as our face is an essential part of our identity.
How does our brain perceive the passage of time?
“The way we recognize ourselves is often based on our face, and there is a sophisticated code in the brain to distinguish facial identities,” confirms the study. “This explains why twins so commonly attract our attention and are used to understand how the balance between innate and acquired can generate a phenotype,” a term that designates the set of c
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