Many people believe that birth order shapes our personalities and has impact on the careers we choose, and the ways we behave. However, it is difficult to conduct good research on birth order, and ...

Researchers are further exploring the notion that having an older brother increases a man's chances of being gay. It's called fraternal birth order effect. Researchers are further exploring the notion ...

First-born children earn measurably higher incomes than their younger siblings on average. This pattern holds across diverse cultures, socioeconomic backgrounds, and family sizes. Birth order itself ...

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 ...