If you’ve ever watched a pair of siblings laughing over an inside joke, backing each other up at the dinner table, or navigating life with the seamless shorthand of best friends, you might assume it’s ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Aself-described “family-ologist,” New York Times Magazine staff writer Susan Dominus writes in her new ...

The seemingly simple act of caring for younger siblings affects the oldest child all their life. Klaus Vedfelt via Getty Images “Fiercely independent,” “driven,” “responsible” and “caretakers” are ...

Strangest Science Experiments That Actually Happened: Some countries wont draft you into the military... unless youve got a brother. In parts of Ghana, the second-born twin is considered the elder.

“I don't know if I'm being mean about it,” a mother wondered on Mumsnet Brian Anthony Hernandez, who has nearly 20 years of journalism experience, joined PEOPLE as a writer-editor in 2023. Brian ...