Also, while not used very nicely, "lizard brain" is a real term used and its something we all have. Its just another way to describe the Id, or really just the "pure instinct" side of our reasoning.

God forbid men actually use their instincts for something and not think thinks over 20 thousand times like some women do in their hivemind and then come to the conclusion that Chad might not be the correct partner and a partnership with 40 cats might be more to their liking.