The BBC reports that an Israeli study involving 203 people revealed those who had certain variants of a gene called AVPR1a were on average nearly 50% more likely to give money away in an online task.
Lead researcher Dr Ariel Knafo said: “The experiment provided the first evidence, to my knowledge, for a relationship between DNA variability and real human altruism.”
The gene AVPR1a plays a key role in allowing a hormone called arginine vasopressin to act on brain cells. Vasopressin, in turn, has been implicated in social bonding.
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