with Emily Oster (@ProfEmilyOster) and Hanne Tidnam (@omnivorousread) Are chia seeds actually that good for you? Will Vitamin E keep you healthy? Will breastfeeding your baby make them smarter, or skinnier? There’s maybe no other arena where understanding what the evidence truly tells us is harder than in health… and parenting. And yet we make decisions based on what we hear about in studies like the ones listed above every day. In this episode, Brown University economics professor Emily Oster, author of Expecting Better and the recently released Cribsheet: A Data-driven Guide to Better, More Relaxed Parenting, from Birth to Preschool, and a16z's Hanne Tidnam dive into what lies beneath those studies, and talk about how to make smarter decisions based on them (or not).  Oster walks us through the science and the data behind the studies we hear about – especially those hot-button parenting issues that are murkiest of all, from screen time to sleep training. How we can tell what’s real and what’s not? Oster shows us the research about how these guidelines and advice that we are "supposed" to follow get formalized and accepted inside and outside of healthcare settings -- from obstetrics practices to pediatrics to diet and lifestyle; how they can (or can’t) be changed; and finally, how the course of science itself can be influenced by how these studies are done.