Save people some time: But the one thing that does unite them is “how they view the importance of social relationships,” said Sandra Weintraub, a professor o

Save people some time: But the one thing that does unite them is “how they view the importance of social relationships,” said Sandra Weintraub, a professor of psychiatry and behavioral sciences at the Northwestern Feinberg School of Medicine, who has been involved in the research since the start. “And personality wise, they tend to be on the extroverted side.”