Whether you’re the rule-following eldest, the rebellious middle, or the attention-seeking youngest, your birth order isn’t just a fun fact—it’s a psychological blueprint. Scientists and psychologists ...

Does your place in the family shape your personality? A new large-scale study published in PNAS in December 2024 explores how birth order and family size may play a role—and found that middle children ...

Ever looked at your kids and thought, “How did they all come from the same womb?” Turns out, birth order might have something to do with it. Psychologists have long studied how your place in the ...

Birth order doesn’t just determine when family photos are arranged. According to developmental psychologists, your position in the family constellation significantly influences personality development ...

EDINBURGH, Scotland — Those warm hugs and bedtime stories from your childhood might be shaping your adult personality more than you realize. New research comparing identical twins has revealed that ...

When you think about your childhood, how much do relationships with your siblings come to mind? Or, what if you had no siblings, and could therefore claim the status (and the throne?) as the only ...