While identical twins share a significant amount of DNA, their dietary choices can lead to very different health outcomes for them. In March 2022, 22 sets of identical adult twins participated in a ...

The Science of Siblings is a new series exploring the ways our siblings can influence us, from our money and our mental health all the way down to our very molecules. We'll be sharing these stories ...

For more than a century, scientists have debated whether intelligence is mostly a product of nature or nurture. Identical twins—those born with the same genetic blueprint—have long been the perfect ...

In the previous post, I drew attention to two findings for which there is a rising tide of evidence. One is that, although identical twins may inherit identical genes, those genes may be differently ...