[belorn]

I wish people would stop spreading this myth and actually follow current science when calling out biological difference between women and men. Testosterone does not cause or create aggression. The link between testosterone has the same root as the link between emotional instability and estrogens, which is deeply seated into gender roles and gender discrimination.

Consistently when people look at aggression the same findings pops up. Men more likely to engage physical aggression, women are more likely to engage low-risk aggression, and women and men show to be equally likely to engage in verbal aggression. Unless Linus goes around and are physical violent with fellow developers then his gender has nothing to do with it.

Take a look at this nice lecture from a professor of biology, neurology and neurological sciences (https://youtu.be/2bnSY4L3V8s?t=30m17s). Recent studies into testosterone levels has shown that it has no relation to initiating aggression in both men and women. What it did find is that different level of testosterone impact how much of an defense behavior is triggered in response to social status threats. An interesting fact is that higher level of testosterone in women actually have a bigger impact compared to men, but men on average showed a larger response.

That might sound like aggression but here is the deal. If you create a social structure which rewards cooperation and social status is maintained through non-aggressive behavior then testosterone is correlated to lower aggression. That mean that it should tell you a lot about the community or company if testosterone correlate to aggression.