OLYMPIA, Wash. — David Simonsen wanted his teenage son to earn money, so he offered what he thought would be a tempting task: the chance to sell stuff on eBay. The boy wasn't very interested. So ...

WILLIAMSBURG, Va. — Everyone loves a good sibling rivalry. “That’s one of the biggest motivations I have, is just always trying to be better than your sister," said Walsingham Academy track star ...

Some of our longest-lived relationships are with our siblings. And research shows our ties with sisters and brothers can be much more impactful than we realize, especially as we age. As part of our ...

In a world that moves fast and pulls people in different directions, helping siblings grow up with a deep, lasting bond is one of the greatest gifts a parent can give. Sibling closeness isn’t ...

It’s no secret that TV loves a good sibling rivalry. Given the extent to which TV as a medium has often been concerned with the doings of the American family, whether in the sitcom format or a drama, ...

Eighty percent of American children grow up with at least one brother or sister—more than the number of kids living with their fathers. Yet, for more than a century, psychological research has largely ...