I am not a brain scientist (I don't even know the correct name for a brain scientist). That being said isn't it true that there are chemical (e.g. hormonal) dif

I am not a brain scientist (I don't even know the correct name for a brain scientist). That being said isn't it true that there are chemical (e.g. hormonal) differences in male and female brains? So if the "hardware" (brain structure) is the same but the "software" (chemicals) is different doesn't that invalidate the argument that sex should be ignored when studying the brain?