The question of whether siblings' birth order shapes their personality has puzzled families and psychologists for years. What ...

The psychological debate about sibling order has persisted for decades—but it might be time to break up with the popular theory. Three boys ages five to eight stand in a line.

Birth order may play a bigger role in shaping who you are than you even realize. From the stereotypical elder, middle, and youngest sibling traits to the unique qualifications that shake things up ...

Birth order clearly matters, just not for personality. Siblings loom large in our lives, and the extent of their individuality can be striking. Their differences cry out for an explanation, which ...

If you have siblings, you’re probably more than aware of how different you are—and your birth order plays a big role in that.Whether you’re the oldest, the youngest, or a middle child ...

What your sibling birth order does — and doesn’t — explain. This moment demands more than headlines. In a time of noise, confusion, and spin, we’re committed to clarity, ...

Psychologists say it's possible that your birth order can reveal a lot about your preferred love language, which could be any ...

Still, there is no convincing some siblings who insist their birth order has predestined their role in the family. After her study published, Dr. Damian appeared on a call-in radio show.

As many parents can attest, siblings tend to be more different than alike. Some of this may be the result of our birth order, and how we’re subsequently raised. What’s more, birth order may ...

But not this "fraternal birth order effect." The fact that a person's likelihood of being gay increases with each older brother has been found all over the world – from Turkey to North America ...

Yes, Friday is National Sibling Day. Much like how many fingers you were born with, or your ability to process colors and shapes, your birth order determines an awful lot about how you go through ...