Yup. The sexually dimorphic nucleus. The reason why men have higher sex drives is because men have a larger SDN. The male SDN is 2.2 times larger than the female SDN, and has about 2.1 times as many cells. Interestingly, the SDN volume and number of cells decrease with age (a possible reason for decline in libido?). A substantial decrease in the number of cells occurs between the age of 50 - 60 years in men (which is right when men start having trouble getting it up). Cell death overall is more common in females though, especially among those older than 70 (it can drop to 10-15% of the levels found in early childhood, for women).
Testosterone increases the size of the SDN, and a larger SDN also means higher testosterone.
The female SDN is more apoptotic than the male SDN; proapoptic proteins are found in higher levels in females than in males, whereas antiapoptotic proteins are found in lower concentrations in females.
We also know that in other animals that display homosexual mating behavior, their SDN is a lot smaller than their heterosexual counterparts, by about half in many homosexual animals (meaning that a homosexual male’s SDN is about the same size as that of a heterosexual female’s SDN...).
Just food for thought.
I haven’t read the Red Queen yet (even though I have it lol) but I know a about it’s content bc of what others have said about it. I disagree with a lot of it because it assumes that cuckoldry is in a woman’s nature, which I don’t think is true. If you scroll through my threads, you’ll see I did I made 2 threads about how it’s not actually as common and did the actual math. I’m pretty darn sexist, borderline misogynistic because sometimes I feel contempt or even a bit of a hatred towards women when I hear of stories, but I don’t believe that 1 in 3 people are the product of a wife cheating on her husband lol. That’s why I actually did all that annoying math haha
Also, that theory you posted about above doesn’t make sense for us as humans because that would imply that women aren’t picky with who they choose to mate with, meaning that they’d be okay with having sex with any lowdown scum or beta, and we know just from experience in everyday life that that’s just simply not true lol. It does happen in SOME animals, I’ve seen it with some sort of lizard/lizard-looking reptile before in this documentary, but there were 3 separate species of them that all stalemated each other, creating a sort of equilibrium to where neither side truly has control over the females. In humans, women only want top cock from alpha Allen, not beta billy.