When we think about the relationships that shape us, we often default to discussing our parents. Decades of psychological research have explored the influence of parenting styles, attachment dynamics, ...

Sibling relationships are some of the longest-lasting relationships we have in our lives. Half of Canadians and around 80 per cent of people worldwide have at least one sibling. Sibling relationships ...

Forbes contributors publish independent expert analyses and insights. I write about relationships, personality, and everyday psychology. Sibling relationships influence our development as growing ...

Birth order has long been linked to differences in cognition, with firstborn children often outperforming their later-born siblings. Parental engagement and interaction have been suggested as ...