Testosterone Expert: The Truth About DAD BOD & Why Women Find Fathers More Attractive!

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What actually happens to your brain, and how fast or slow do you age when you become a parent? Dr. Darby Saxbe reveals the surprising science of the "parental brain" and how fatherhood physically reshapes a man's mind, why dads lose grey matter, what really happens to testosterone, and why the "dad bod" might be nature's design. Dr. Darby Saxbe is a professor of psychology and a leading researcher on the neuroscience of parenthood. She is the founder and director of the NEST Lab at the University of Southern California, and is also the author of ‘Dad Brain: The New Science of Fatherhood and How it Shapes Men's Lives’. Chapters 00:00:00 Intro 00:02:13 Role Of Fathers In Parenting 00:06:10 What Happens To The Brain When You Become A Father? 00:09:09 Why Testosterone Drops When Men Become Fathers 00:11:22 Should Men Be Worried About Lower Testosterone? 00:15:39 What Fatherhood Can Change In A Man’s Personality 00:19:00 The Upsides And Downsides Of Parenting 00:21:30 What Happens When We Make Parents Fight? 00:23:48 Why The Birth Experience Can Shape Your Relationship 00:27:25 Are People Waiting For The Perfect Time To Have Kids? 00:30:44 Why Fewer People May Be Choosing Parenthood 00:35:12 Ads 00:37:34 Do Parents Actually Have Healthier Brains? 00:45:02 What Does Daycare Really Mean For Children? 00:47:17 Why Mothers Become The Default Parent 00:49:10 Maternal Gatekeeping And Weaponized Incompetence 00:52:04 What Really Happens To Relationships After A Baby 00:54:27 Why Fathers Can Experience Postpartum Depression 00:56:45 Can Your Personality Predict Whether You’ll Divorce? 01:00:51 Why Women’s Ovulation May Be Harder To Detect 01:03:06 How Can You Increase Your Chances Of Conceiving? 01:04:03 What Every New Father Needs To Know 01:04:51 Ads 01:05:51 How Should Parents Divide Baby Care? 01:07:54 What Couples Should Do Before Having Kids 01:13:26 How To Protect Your Relationship After Having Children 01:15:24 Is The Dad Bod More Attractive? 01:18:36 What Does Your Childhood Teach You About Parenting? 01:20:30 How Divorce Can Affect Children 01:20:47 Are Humans Really Meant To Be Monogamous? 01:22:09 What Are The Biggest Concerns About Modern Parenthood? 01:23:54 What Systemic Change Could Transform Parenting? She explains: ◼ Why a father's brain physically shrinks when you become a dad ◼ Why testosterone drops in new fathers ◼ Why the "dad bod" may signal a more attentive hands-on father ◼ Why men experience postpartum depression ◼ Why raising a child was never meant to be done by two people alone Follow Dr. Darby: Website - https://link.thediaryofaceo.com/6wyEXDT Substack - https://link.thediaryofaceo.com/1iY1VAb Instagram - https://link.thediaryofaceo.com/48ogGf4 TikTok - https://link.thediaryofaceo.com/Bdn7jlF NEST Lab - https://link.thediaryofaceo.com/8PwWwEd  You can purchase Dr Darby’s Book, ‘Dad Brain: The New Science of Fatherhood and How It Shapes Men's Lives’, here: https://link.thediaryofaceo.com/2eavkOe You can join her US based ‘Daddy Stroller Social Club’, here: https://link.thediaryofaceo.com/2uWEONI Independent Fact Check: https://stevenbartlett.com/wp-content/uploads/2026/08/DOAC-Dr-Darby-Saxbe-Independent-Research-Further-Reading-1.pdf The Diary Of A CEO: ◼ Join DOAC circle here - https://doaccircle.com/ ◼ Shop The Diary Of A CEO collection: https://thediary.com/collections/shop ◼ Get email updates - https://link.thediaryofaceo.com/5IB1H6E ◼ Follow Steven - https://link.thediaryofaceo.com/AGU9QP4 Sponsors: Shopify - https://shopify.com/bartlett Linkedin Talent Solutions - http://linkedin.com/DOAC Pipedrive - https://pipedrive.com/CEO