For some reason health advice is black and white but the research it’s based on is anything but. Example: You’re not allowed to drink while pregnant. Turns out that most of the studies this is based on, most of the participants were on cocaine. Of the people not on crack, they were heavy drinkers – 5-6 beverages per day, every day. Turns out, it’s hard to tell if there is any effect for someone who occasionally drinks (less than 1 a day). But doctors are pre-disposed to be more cautious since they can get sued if they take a liberal approach. This podcast speaks to Economist Emily Oster and how she used economics to approach her own pregnancy and pregnancy related health research.