Study relies on twins and their parents to understand height-IQ connection

The fact that taller people also tend to be slightly smarter is due in roughly equal parts to two phenomena -- the same genes affect both traits and taller people are more likely than average to mate with smarter people and vice versa -- according to a new study.

Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/M...