Follow-up on sex differences

I recently expressed skepticism over specific claims of differences between men's and women's brains, including that women use 20,000 words per day, while men use 7,000. This has now been debunked by Mark Liberman at Language Log in a series of posts:

• < a href="http://itre.cis.upenn.edu/~myl/languagelog/archives/003419.html">Neuroscience in the service of sexual stereotypes
• Sex-linked lexical budgets
• Sex and speaking rate

I found out about these posts from the always interesting Mind Hacks blog.