A recent study finally reveals why women talk more, much more than men! Turns out they’ve higher levels of a language protein called Foxp2 which plays an important role in language development in human beings. This might explain why women on average speak 13,000 more words than men in day!
Researchers also did tests on baby rats where the sex difference in Foxp2 levels is reversed, with young male rates normally having more. Separated from their mothers the males made more noise and were retrieved first.
When the team reversed the protein levels, raising it in the females, the mother reversed her behaviour. The study then found that girls had more of the Foxp2 protein in the cortex than boys the same age. Cheryl Sisk of Michigan State University, said: “At first glance, one might conclude that the findings in rats don’t generalise to humans, but the higher levels of Foxp2 expression are found in the more communicative sex in each species.”
The study is published in The Journal of Neuroscience.