Many people know nothing about the mutual fund manager whose investment decisions impact the performance of their IRA and 401 ...

To help combat the chances of someone, such as your child, developing narcissistic personality disorder, Reiser said it’s a good idea to cultivate empathy starting at a young age, whether that’s by ...

One of the birth order stereotypes that did hold up: The oldest siblings tended to score highest on the IQ test, with IQ scores declining slightly with every subsequent sibling. (This could be ...

When it comes to birth order, it seems that everyone has something to say. While many middle children say, “I feel invisible!” firstborns may complain about extra responsibilities.

According to the Huffington Post, “since the 1970s, thousands of scientific studies on birth order have been conducted, but psychologists often disagree about how much of a role birth order ...

While some scientists say the whole personality thing (you know, the youngest kids are rebellious and the oldest are bossy, for example) is a total myth, birth order can affect us in unexpected ways.

Other factors that throw off birth order influence include temperament, gender, physicality, age spacing and something called "specialness," according to Real Simple.

And birth-order characteristics, she said, are something that just emerge naturally when parents add more than one child to the family.

They're more faithful than their siblings According to birth-order researcher Dr. Catherine Salmon, middleborns are significantly less likely than others to cheat in a long-term romantic relationship.

The Steele children at home in Mississauga: Ryder, 7 (left), Kadyn, 5, and Bodhey, 18 months. Their mother sees birth order characteristics in them. J.P. MOCZULSKI ...