Two twins grow up in the same household, eat the same meals, attend the same schools, and share the same parents. By age 27, ...
A new twin study suggests your genes may play a bigger role in your future success than your upbringing. Researchers found ...
For as long as intelligence has been studied, we’ve been told that our raw IQ is mostly a genetic hand-me-down. Sure, we've learned how to sharpen the knives we were handed and increase our “effective ...
Claims that fluoride in drinking water causes cognitive delays in kids are driving U.S. policy. A new study finds no evidence to back them.