Friendship Is All In The Genes

We choose our friends based on many factors — common tastes, sense of humor, interests, and, according to a new study, gene patterns. Researchers discovered that friendship circles share more than the same taste in music and movies, they share similar DNA. Friend pairs tended to have closely matched levels of the gene that controls dopamine and seratonin in the brain, while having opposite levels of a gene linked to immunity. What does this mean? In short, that we instinctually befriend people with similar dispositions and dissimilar immune systems, meaning they’ll want to go to the same concert as us AND they probably won’t catch our flu when we get sick. If that’s not the definition of a friend, I don’t know what is. In the future, I will be administering DNA tests to prospective friends. [Live Science]

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