A new study found the characteristics that make a child more likely to be their parents' favorite. Experts revealed the ...

Annie Wright, a licensed marriage and family therapist, told Business Insider that "birth order can influence personality traits and relationship dynamics," including which qualities you look for ...

Study reveals parents tend to favor younger siblings, daughters, and the more agreeable — often without realizing it. BYU's ...

If parents of young children spot common birth-order characteristics, like their oldest daughter offering the bulk of caregiving support, they can encourage their other kids to reciprocate.

Notable middle children who defy the 'overlooked' stereotype include Martin Luther King Jr., Madonna, Warren Buffett, and ...

The relationship between sexual orientation and birth order has been a topic of interest in psychological and biological research. Studies have explored how factors such as the number of older ...

Genome-wide association studies (GWAS) are now used to explore the specific links between many small genetic differences and people’s traits. Does birth order affect personality? Created with ...

Siblings share a unique bond built from shared memories, family rituals and the occasional argument. But ask almost anyone with a brother or sister and you'll likely find a longstanding debate: who's ...