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 ...

Fascination with twins and what twin studies tell us about human nature is universal. There is no question that behavioral and medical science advances have happened largely because twins yield a ...

It’s the main reason why Jonathan Schaefer, assistant professor in Vanderbilt University’s Department of Psychology, relocated here in 2023 to continue his research on the environmental determinants ...

A study based on Finnish twins shows that reproductive history is associated, at the population level, with women's lifespan and biological aging. In the study, mothers of large families, women who ...

Quick Read A 2014 Swedish twin study analyzing 30,000 sets of twins found that roughly 45% of investing behavior—including ...

The information gathered from the study of twins lays the groundwork for future genetic research, including the degree to which any aspects of life are determined by genetics, the location of specific ...