refers to how being the first-born child in a family can shape a person’s identity. Birth order has long been thought of as one of the primary factors that influence our personality and development.

You’ve seen the memes describing the responsible (or bossy) older sibling, the under-the-radar or overlooked middle child, ...

Does your place in the family shape your personality? A new large-scale study ... but any environment that prioritizes mutual support and collaboration can foster these traits. Related: It’s science: ...