What did Manel Estella's research discover about doppelgangers?

Manel Estella and his team from the Josep Carreras Leukemia Research Institute discovered that doppelgangers (lookalikes) share similar genetic variants beyond just physical appearances. Their study analyzed 32 pairs of doppelgangers using facial recognition algorithms and found these unrelated individuals also exhibited similarities in height, weight, education level, and lifestyle choices like smoking habits. The research, conducted in Barcelona, Spain, explored the intersection of genetics, epigenetics, and microbiomics to understand the underlying reasons for these similarities. The findings suggest that our appearance and certain traits can reflect shared genetic patterns among unrelated individuals, providing fascinating insights into the complex relationship between nature and nurture in human resemblance.