NPR:
In the past 20 years, psychologists and neurologists have started to look at how empathy actually works, in our brains and our hearts, when we’re not thinking about it. And one thing they’ve found is that “one of the strongest triggers for human empathy is observing some kind of conflict between two other parties,” says Fritz Breithaupt, a professor at Indiana University who studies empathy. “Once they take the side, they’re drawn into that perspective. And that can lead to very strong empathy and too strong polarization with something you only see this one side and not the other side any longer.”