Have you ever been standing in the shower, when suddenly, the noise in your brain clears and in its place appears the perfect thought?
That's a Shower Thought, and RNZ's Nights is aiming to answer those unshakeable questions lurking in the back of your mind.
Tonight's question: If humans have been living largely on bread for thousand years, why do so many people have gluten intolerance?
Dr Oli Gasser at the Malaghan Institute of Medical Research speaks to Emile Donovan.