DR. WALLACE: I’m a girl who’s 17, and I’m a twin. However, we are not identical twins, nor even the same gender! My problem is that even though we are the exact same age, my mother and father have ...

For more than a century, scientists have debated whether intelligence is mostly a product of nature or nurture. Identical ...

I never believed in love at first sight until I met my now-husband. I couldn't recognize him from his identical twin brother over the phone. We ended up having fraternal twins, and I got to experience ...

When our identical twin boys were born, we deliberately treated them as individuals. Even their closest friends struggled to tell them apart despite our efforts to differentiate them. The twins ...

There’s a common assumption that intelligence is largely determined by genetics. After all, previously published studies ...

The link between social media use and poorer wellbeing is modest and shaped by our genetics, researchers in the Netherlands ...

Destinee and Dynastiee are identical twins who need to lose weight. Combined they weigh 1,200 pounds and seek help from bariatric surgeon, Dr. Younan Nowzaradan. “The 6000-lb. Diaries with Dr. Now” ...