A large international study of more than 45,000 people shows that narcissism is a universal personality trait—not one concentrated in any single country.

Should we use “sex” and “gender” interchangeably when discussing people? A recent article in the prestigious academic journal, Proceedings of the National Academy of Sciences (PNAS), provides one ...

AMES, Iowa – Gender is a large part of our identity that is often defined by our psychological differences as men and women. Not surprisingly, those differences are reflected in many gender ...

Findings published in the journal Nature Mental Health "may help explain why boys and girls often follow different paths toward substance use and addiction", said senior author Amy Kuceyeski.