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The Mother's Immune System Is Adaptive
When there's a male fetus growing, that's x, y. There's a y chromosome. And the various proteins that come off of the y chromosome are foreign to the mother's body. She doesn't have a y chromosome of her own. Her immune system starts doing what an immune system does. Inactivate these proteins that are foreign to your body. The purpose of right, those proteins are part of masculinizing the brain of the kid. So is, why would this be, what's the word? Is it adaptive? Like, why did we evolve this or why is this persisted?