Ever had a song stuck in your head long after the music stopped? Or found yourself replaying an argument—what you said, what you wish you had said, or how it might unfold next time? These mental loops ...

Forbes contributors publish independent expert analyses and insights. Mark C. Perna is a generational expert who covers education & careers. Ever have a difference of opinion with someone at work?

Forbes contributors publish independent expert analyses and insights. I write about relationships, personality, and everyday psychology. Sometimes, the real fight isn’t about issues with your partner, ...