The eyes have it: Men do see things differently to women
The way that the visual centers of men and women’s brains works is different, finds new research published in BioMed Central’s open access journal Biology of Sex Differences. Men have greater sensitivity to fine detail and rapidly moving stimuli, but women are better at discriminating between colors.
It means there are 25% more, but neurons aren’t the only thing the brain is made of. Idk how much of a size difference, if any, this makes. Considering how sensitive lips and fingers are compared to equal sized parts of your skin in other areas, there might be a similar situation of just having a lot of space in the total structure for extra neurons. It could be a small increase in size, it could have no impact on size, more studies required.
At the very least it makes a good exercise in questioning facts to make sure you are not coming to faulty conclusions by misunderstanding.