I just had dinner with my family. Do you know what the most common dinner conversation is that my parents have with each other? Digestion. “Eating that kind of rice so fast will be really bad for your digestion!” or “Digestion will be really good today.” or “Yesterday, I had really bad digestion. I wonder what it was that I ate.” (I admit it doesn’t sound so weird in Korean.) Is it only my parents who talk about this all the time? I never did ask how they know how well they are digesting their food.