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In this episode, Dr. Brandon & Dr. Morgentaler talk about studies reporting parental brain “shrinkage” and lower testosterone in new fathers, arguing these are likely effects of sleep deprivation and stress — not adaptive evolution — and usually rebound as life normalizes.
- 00:11 – Introduction: The doctors introduce today’s topic, exploring how becoming a parent can literally change your brain and hormones.
- 00:41 – The Research: They break down the research showing brain volume shrinks in new parents, comparing fathers and mothers and what that might mean.
- 11:08 – Discussion: A lively discussion about testosterone drops in dads, why it’s probably sleep deprivation, and why calling it “evolutionary” is a stretch.
- 17:52 – Stories: They share honest stories about those hazy newborn months, feeling “brain-dead,” and how things eventually go back to normal.
- 19:52 – Conclusion: Wrapping up, they reassure listeners that brains and hormones bounce back and encourage enjoying parenthood without fear.
