GLP-1s. Colostrum. Microplastics. Red light therapy. Vaccines. There’s a staggering amount of health and wellness news and information, and it’s bombarding us everywhere we look. Who’s got time to parse it out, to verify it, and then to actually do the work of improving our health? And what if those wellness influencers actually knew how to read a medical study?

That’s why we’re here. We are Emily Oster, best-selling author and data expert, and Perry Wilson, a medical doctor. And our goal is to separate fact from fiction, causality from correlation, so that you can stay informed without being overwhelmed. Every episode, we cover the health news of the week, take listener questions, and do a deep dive into a buzzy and misunderstood wellness topic so that you can actually make the best decisions for your own health.

So join us for a weekly dose of sanity. It might actually be just what the doctor, and the economist, ordered: health advice for real life.

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An announcement from Emily about the podcast.

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For many people, when we start thinking about a family, we assume it'll just happen nine months from the moment we start trying. But that isn't the way it happens for all of us. And fertility can often be a journey that's more winding and more complicated and more confusing than we expected it to be. That's why ParentData has launched a new content vertical, Trying to Conceive (TTC), covering everything from ovulation windows to donor eggs to infertility treatments, along with a newsletter all about infertility treatment in particular, which aims to answer all of your questions with data. It's our mission to provide real evidence-based information so you can make the best decisions for your family.

Today on ParentData, we're airing the audio from an event Emily did with three of the people who have contributed most to our new initiative: Dr. Breonna Slocum, a reproductive endocrinologist and fertility specialist, Marea Goodman, a licensed midwife and author, and Dr. Pooja Lakshmin, a perinatal psychiatrist. This roundtable of experts discuss about where to start with fertility, answer audience questions in real time, and consider what they all wish that they knew before starting the journey of trying to conceive.

Explore to Trying to Conceive on ParentData.org, where you can also access new articles every week on data-driven pregnancy and parenting.

This episode is generously supported by:

• Hatch
• LMNT
• StrollerCoaster Podcast

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When you look at the data, it is true that after people have kids, marital satisfaction declines. Having a baby drastically changes everything in your partnership that was familiar, that was predictable, that you got used to. And some of those are the reasons you got into the relationship in the first place. 

That’s the reality of having kids. And as much as we love them, it can be an incredible shock to the system. There were date nights, there were lazy Sunday mornings in bed, and now there are feedings and diaper changes, feeling touched-out, packing school lunches the night before or at 5:45 in the morning. To paraphrase Ethan Hawke’s character from Before Sunset: We used to be in love. Now we’re roommates who run a day care together.

Today on ParentData, we're joined by Dr. Yael Schonbrun, a clinical psychologist, an author, and a researcher who focuses on the science and data behind healthier, happier relationships. And she’s here to help you baby-proof your relationship. Take heart: for many — probably most — couples, this issue is not hopeless.

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This episode is generously supported by:

• Hatch
• LMNT
• StrollerCoaster Podcast

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Shots are never a fun experience. Even if you are enthusiastic about vaccines, holding your kids as they get them is not usually a high point of parenting. And right now, the conversation about vaccines is increasingly fraught - and not just because our kids are sometimes afraid of needles.

Because we're living in a moment where vaccines, long one of the most trusted and studied preventative medical treatments in existence, are suddenly being viewed with skepticism. Debunked theories about the relationship between vaccines and autism, for example, are taking center stage on Instagram and  Facebook, but also in congressional hearings. Part of the problem is a lack of understanding. People don't know quite how vaccines work or why there are more now than in the past or how we can know that they are safe. 

Today on ParentData, we welcome Dr. Adam Davis. Adam is a pediatrician in the Bay Area, and he has a lot to say about vaccines from the perspective of someone who gives them. In the conversation, we talk about our theories on why the COVID vaccine sped up a slow-growing movement around vaccine skepticism, about the role that vaccines play in public health, about what it’s like for doctors to deal with vaccine skeptics in their own practice and what people can and can't be talked into or out of, and, because it’s a parenting podcast, some hacks for getting your kids through vaccines without too much drama.

Subscribe to ParentData.org for free access to new articles every week on data-driven pregnancy and parenting.

This episode is generously supported by:

• Hatch
• LMNT
• Little Sesame
• StrollerCoaster Podcast

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In the last month, we've aired podcast conversations with Dr. Nathan Fox and Dr. Bapu Jena, and though the content is different, there’s an underlying thread that connects them both: what it means to deal with risk, and uncertainty. And not lose your mind.

Economists deal with this constantly, and so do parents, but not in the same way. Economists learn not to panic in ways that parents, understandably, have a really hard time with. We’re trained to read the studies, and spot their holes, or their aims and impacts. Yes, we live in a world with trace amounts of lead in Cheerios, and sometimes it can feel scary to leave the house. But things that are low risk are low risk, no matter how scary they feel.

Today on ParentData, Emily reads her recent article on risk and uncertainty aloud, and encourages us all to think about risk like economists, so that we can internalize it as sane parents.

Subscribe to ParentData.org for free access to new articles every week on data-driven pregnancy and parenting.

This episode is generously supported by:

• Hatch
• LMNT
• Little Sesame
• StrollerCoaster Podcast

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For many of us, our first exposure to our pelvic floors is through the Kegel exercises we learned about in Cosmo, promising us great sex. The reality of our pelvic floors comes roaring back in pregnancy, when they are are more taxed than they've ever been. The pelvic floor turns out to have a hand in many things, including peeing, pooping, sex, pregnancy, labor, birth, postpartum, and menopause. And like with all muscles, the more we take care of them, they better they can take care of us.

Today on ParentData, we welcome the Vagina Whisperer herself, Dr. Sara Reardon. Sara's new book, Floored: A Woman’s Guide to Pelvic Floor Health at Every Age and Stage, which will be released in June, explores the seasons of life with a pelvic floor, from puberty to menopause. In this conversation, we talk about the optimal ways to pee and poop. We discuss what actually happens when you go to pelvic floor therapy. We discuss Kegels and why they are often good but also not a panacea. More than anything, Sara takes something that we all experience privately, and encourages us to shine a light on it, take the stigma away, and tighten up with confidence.

Subscribe to ParentData.org for free access to new articles every week on data-driven pregnancy and parenting.

Follow Sara Reardon on Instagram

This episode is generously supported by:

• Hatch
• LMNT
• Little Sesame

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Award-winning talk show host Tamron Hall dives into dressing your kids properly for the weather and overall preparedness as a parent (and why it's so elusive), and extolls the virtues of the preschool jacket flip (IYKYK).

Subscribe to (the new and improved!) ParentData.org for free access to new articles every week on data-driven pregnancy and parenting.

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Today on ParentData, we're welcoming back Dr. Nathan Fox, Emily's co-author for The Unexpected- a book about when things go wrong, or at least get complicated, in a pregnancy. Nate is an OB-GYN and a maternal-fetal medicine specialist, and he is one of our favorite returning podcast guests, not just because he’s a great talker but also because it’s really nice to have a doctor who can both provide medical answers to questions that come up around pregnancy, and help you have the best possible experiences with your own doctor. 

We’re discuss some big issues that arise during pregnancy and the many prenatal doctor’s visits; about the distinction between self-management and calling your doctor (when do you know if something is normal-bad or bad-bad?), and we’ll talk about just how subjective that line actually is. We also talk about risks and tradeoffs and about the kinds of postpartum issues that are worth addressing while still pregnant (we're looking at you, depression and anxiety). 

The Unexpected, and this conversation, are meant to help people be much better prepared for what they may face in their pregnancies and to help better navigate conversations with doctors — both the expected conversations and the unexpected ones.

Subscribe to (the new and improved!) ParentData.org for free access to new articles every week on data-driven pregnancy and parenting.

Subscribe to (the new and improved!) PregnantData newsletter.

This episode is generously supported by:
• Hatch
• LMNT

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Today on ParentData, we're airing an episode from Raising Parents, Emily's limited series podcast in partnership with The Free Press. The episode is the last in the series, but the first question we all need to grapple with before engaging with all the others: should you have kids?

For most of human history, having kids wasn’t much of a choice. Social expectations, lack of birth control, and limited autonomy for women presented a couple of options: Have children, or join a convent. But the 1960s ushered in a big change. With better options for birth control and expanded career opportunities for women, many people for the first time could choose how many children to have, and whether they should have any at all. 

Fast-forward to today: More people are choosing not to have children for a wide range of reasons. Having children, of course, is a personal choice. But it’s a choice that has broader implications. Everywhere across the globe—the U.S., Europe, Asia, Africa—fewer children are being born. And strangely enough, having kids has become part of the culture wars. There are pro-natalist public figures like Elon Musk on one side saying everyone needs to have more kids now in order to save humanity. And on the other side, people like climate activist Greta Thunberg say rising sea levels are so catastrophic that having kids in this era is akin to genocide.

But there’s no debate that the fertility rate is plummeting in America and around the world. Presently, American women, on average, have 1.8 kids. In the 1950s, it was 3. The replacement rate in the United States, which is the fertility rate needed for a generation to replace itself without considering immigration, is approximately 2.1 births per woman. Around the world, the fertility rate fell by more than half between 1950 and 2021, as many countries became wealthier and women chose to have fewer children.

For economists like Emily, the speed with which the fertility rate is falling is cause for alarm. Economic growth depends, at least in part, on population growth. Retired people rely on generations of younger workers for support, through contributions to Social Security and taxes. With fertility rates in free fall, the math doesn’t add up.

That’s the big picture. Now back to our own families, and a fundamental question: Should we even have kids in the first place, and what happens if we don’t?

Resources from this episode:
 • Bryan Caplan: Selfish Reasons To Have More Kids (Bookshop)
• Gina Rushton The Parenthood Dilemma: Procreation in the Age of Uncertainty (Bookshop)
• Leah Libresco Sargeant
• Helena de Groot
• Ross Douthat

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