Genetic factors account for much of the variation in personality traits across the lifespan. Shared upbringing plays a ...

An individual’s genetics and their environment both shape their personality. However, opinions differ on the degree to which each of these factors influences personality, and how they contribute to ...

Most of what we know about personality disorders is based on symptom checklists and leaves out the "person." New research ...

Ask Erin Mantz why she loves personality tests, and she’ll tell you she’s a Pisces, an only child, and an introvert prone to self-reflection. “I’m constantly craving and searching for insights into ...

Forbes contributors publish independent expert analyses and insights. Mark Travers writes about the world of psychology. Social media users are conflicted over an emerging trend related to the ...

Over the years, when people have asked if I’m an introvert or an extrovert, I haven’t known what to say because I don’t identify fully with either personality type. It turns out I’m hardly alone. It’s ...

Are you a responsible oldest child, an overlooked middle, or a free-wheeling baby? For those who adhere to the theory that birth order influences personality, the answer to that question may hold the ...