The psychological debate about sibling order has persisted for decades—but it might be time to break up with the popular ...

While personality isn’t set in stone, your birth order can play a large influence, probably due in part to the shifting family dynamics as younger siblings appear (or not). Face it, the firstborn ...

According to science, birth order personalities are not a thing. As the eldest child, I disagree. Here's why (plus the science behind the studies). I called my mother to set the record straight. Have ...

According to a 1990 study at UC Berkeley, youngest children are more likely to take risks and be open to new experiences—hence your reputation as a rebel. You’re also more relaxed and easygoing than ...

Ever looked at your kids and thought, “How did they all come from the same womb?” Turns out, birth order might have something to do with it. Psychologists have long studied how your place in the ...

A surprising new study — or unsurprising, depending on who you are — suggests that the middle child takes the cake when it comes to certain personality traits. There's no denying that birth order ...

Birth order goes in and out of style in academic psychology, but is a perennial favorite in popular psychology. Time Magazine recently featured a cover story about the general implications of birth ...

There's no shortage of stereotypes when it comes to birth order, especially in the age of social media. Firstborns have been ...

When you think about your childhood, how much do relationships with your siblings come to mind? Or, what if you had no siblings, and could therefore claim the status (and the throne?) as the only ...

Women's Health may earn commission from the links on this page, but we only feature products we believe in. Why Trust Us? Despite our four-year age gap, my younger brother and I are besties. And while ...

Jess King says being the firstborn child in her family brought a weight of responsibility and she still struggles with ...

A new study finds that middle kids and kids from larger families are more agreeable, honest and humble than younger and older kids or kids from smaller families, but the results contradict other ...