"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Despite our four-year age gap, my younger brother and I are besties. And while some of my fellow ...

Despite our four-year age gap, my younger brother and I are besties. And while some of my fellow firstborn friends find it odd, my brother and I openly talk about our dating lives. We tap each other ...

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 ...

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