Is there any scientific evidence behind all the parental advice?

New mums and dads are bombarded with advice and tips on how to parent from the moment of conception. But does the advice on everything from breastfeeding to screen time limits stand up to scientific scrutiny? 
Emily Oster aims to make life a little easier by arming dads, and mums, with the data behind the advice to help them make better parenting decisions.
Speaking to Steve and Rich from the USA, where she is an economist at Brown University, Emily reveals there is often no evidence for doing anything other than what feels natural.   For information regarding your data privacy, visit