Are we destined to be smart? Twin studies reveal strong genetic roots for IQ, yet up to a third of intelligence is shaped by environment, context, and choice.

Mirror twins share reflection-like traits, from birthmarks to handedness. Here’s what that means – and why it’s more fun fact than medical label.

In a post on TikTok, Simpson (@stephsimpson3) shared that her first daughter, Madilyn Brook was born on January 15, 2008, at 11:50 p.m., while her twin sister, Haven JoLee, was born more than four and ...

“Buffy the Vampire Slayer is the formative experience, when I was in high school, that propelled me to want to pursue this as a career,” says James Sweeney. The career — the “this” — is filmmaking.

New research from University of Virginia psychologists has found that "epigenetic clocks"—tools scientists use to estimate a person's biological age—can predict cognitive decline. The study, which ...

ST. GEORGE — Nine-month-old identical twin sisters from St. George were featured in the bright lights of Times Square, their photo celebrating strength and beauty while raising awareness for Down ...

Penn Badgley officially has his hands full — he’s now a dad of three little boys! The You star, 38, slyly revealed the exciting news that he and his wife, Domino Kirke, welcomed identical twin boys.

In the caption of the video, the Gossip Girl star wrote, "Interrupting twin paternity leave to announce a live event @podcrushed at @symphonyspace Oct 14 NYC supporting the release of our book ...

It’s double trouble for Domino Kirke and Penn Badgley! The “Gossip Girl” alum’s wife has given birth to twin boys. Badgley announced the happy news via Instagram Wednesday. “I’m interrupting my ...

“I’m interrupting my paternity leave, which I’m on, by the way, which is also why I’m whispering here,” Badgley began his video on Sept. 3. “Look, you want to see baby feet? Just tiny, little baby ...