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In a new study, a group of scientists, including researchers at UC Berkeley, have found that people who tested high for empathy shared the same DNA linked to promoting social interaction and love.

The GG genotype is a receptor gene that picks up on oxytocin, also known as the “cuddle” or “love” hormone. In the study, two dozen couples watched a 20-second video of strangers revealing their life struggles. In those 20 seconds, viewers who exhibited more nodding, eye contact, smiling and even body language also shared the GG genotype. While researchers warn that trustworthiness is not derived from just one gene, they do say identifying the receptor gene helps pave the way for gene therapy. Think you can tell from one look and tell who you can trust?

Guest:

Dacher Keltner, professor of psychology, UC Berkeley; coauthor of the study





This video shows a sequence of five individuals listening to their romantic partners talk about times when they suffered. They are among two-dozen study participants who were rated on an empathy scale according to their facial expressions and body language.