A recent cover story in The New York Times Magazine by Susan Dominus, the author of the new book, The Family Dynamic, explored the underappreciated but powerful and long-lasting influence siblings ...

Why kids fight: Sibling rivalry stems from evolutionary drives, competition for resources, and differences in personality, birth order, and family circumstances. Conflict as growth: When handled with ...

Most siblings know exactly how to push each other’s buttons as kids, but the real challenge arises when this behavior carries over into adulthood. Do you ever notice that no matter how much you feel ...