In 1972, author David Morell released First Blood, a novel about a war veteran named Rambo, who is wronged by the police chief of a Kentucky town and wages a one-man war against the local and state ...

Brain scans, postmortem dissections, artificial intelligence and lab mice reveal differences in the brain that are linked to sex. Do we know what they mean? When you purchase through links on our site ...

Most Americans, including majorities of men, women, Republicans and Democrats, say men and women are different in many ways. But there are gaps by gender and partisanship when it comes to views of ...

Since antiquity, people have speculated about why it is that people in different parts of the world have different customs, rules, habits, and psychological tendencies. Indeed, if you’ve traveled ...

“No.” It's one of the most commonly used words in any language, but people’s willingness to openly voice disagreement varies by the cultural norms of their backgrounds. These differences matter ...