When I first met Katie, I liked her immediately. She was warm, funny, and accessibly brilliant. We had so many things in common: she loved to read, go to the theatre, and was a bit of a foodie, but ...

For millennia, people have attempted to discover hidden character traits via seemingly unrelated characteristics—one’s handwriting, a bump on the skull, or the arrangement of the stars and planets on ...

Being someone’s “favorite person” might sound flattering at first, but it’s not always a sign of a healthy relationship. Borderline personality disorder (BPD) involves intense emotions, impulsivity, ...