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 ...

Add Yahoo as a preferred source to see more of our stories on Google. Sibling birth order can affect your health and well-being in different ways. (Getty Images) (Westend61 via Getty Images) While ...

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 ...

There are lots of expectations and assumptions about how birth order may shape our adult lives, and many of them go back ages. Centuries ago, the oldest son had huge incentives to stay on track and ...