How Likely Is CMV Transmission From Donor Sperm?
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Q&A on risks
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Emily Oster explains how rare CMV transmission is from CMV-positive donor sperm, the real-world risks, and what to consider when choosing a donor.
The State of Parental Leave
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What the data says about leave-taking in the U.S. and how we could do better
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Emily Oster breaks down new data on parental leave in the U.S., revealing how little time parents take off and how better policies could change that.
What We’re Missing About the Mental Health of New Parents
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New research on the gaps that put families at risk
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Erin O’Connor examines the hidden crisis in postpartum mental health, revealing how screening gaps leave new parents—birthing and non-birthing—without support.
What’s the Right Portion Size for Toddler Meals?
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Q&A on recommended servings
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Emily Oster explains how to gauge the right portion size for toddlers, manage picky eating, and set boundaries around snacks and mealtime habits.
Everything You Need to Know About Pumping
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Increasing supply, storing milk, and managing the logistics
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Emily Oster explains everything about pumping milk—from increasing supply and building a freezer stash to storing, scheduling, and staying sane.
ByHeart Has Recalled All of Its Infant Formula
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Here's what to do
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Emily Oster explains what you need to know about the ByHeart formula recall, and the steps you need to take to keep your baby safe.
How Do I Get My Baby to Latch?
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Q&A on breastfeeding struggles
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Struggling to get your baby to latch? Emily Oster explains why latching is hard, what helps — from positioning to nipple shields — and when to seek support.
What the Data Actually Says About Breastfeeding
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The truth about IQ, cancer, and other promised benefits
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What’s the Data Behind Post-Egg Retrieval Guidelines?
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Q&A on post-op recommendations
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Dr. Meggie Smith explains which post–egg retrieval guidelines—like no exercise, sex, or water submersion—are evidence-based and which are precautionary.
Is There an Advantage to Waiting In Between Embryo Transfers?
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Q&A on timing
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Dr. Meggie Smith explains whether waiting between IVF embryo transfers improves pregnancy rates—or if moving forward right away is just as effective.
All About Circumcision
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Risks, benefits, and options for pain relief
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Emily Oster breaks down the research on circumcision—its risks, benefits, pain relief options, and why claims linking circumcision to autism are misinformation.
How Should I Care for My Baby’s Umbilical Cord?
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Q&A on cleaning
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Emily Oster explains how to care for your baby’s umbilical cord stump—how long it takes to fall off, how to keep it clean, and when to call the doctor.
Is There a Link Between Hair Relaxers and Cancer?
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Q&A on chemical concerns
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Emily Oster explains new research on the link between hair relaxer use and uterine cancer, what the data really say, and how much risk users should worry about.
Child Care Is Expensive and Hard to Find. Here’s How We Fix It.
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The economic argument for subsidies
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Emily Oster explains why child care is so expensive and hard to find, and how child care subsidies could fix access, affordability, and equity for families.
What’s a Safe Level of Noise for My Baby
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Q&A on noise-canceling headphones
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Emily Oster explains what counts as safe noise for babies, whether baby headphones actually protect hearing, and when sound exposure becomes a concern.
How Much Does Marital Conflict Impact Children?
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Q&A on “staying together for the kids”
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Karey O’Hara explores how marital conflict and “staying together for the kids” affect children’s well-being—and what really matters most for their mental health.
