Diverse parental genes lead to taller, smarter children, finds extensive study

The survey of 350,000 people across four continents did not, however, confirm a belief of a link between genetic variety and high cholesterol or blood pressure

The children of parents who are more distantly related tend to be taller and smarter than their peers, according to one of the largest studies to date into genetic diversity.

The study suggests that height and intelligence may be increasing as a growing number of people are marrying people from more distant parts of the world.