Have you ever wondered why people choose Coke over Pepsi or Bud Light over Coors Light? Or why two brands of pharmaceuticals with similar efficacy and safety measures are prescribed differently? The reasoning behind these types of decision outcomes is often more influenced by emotion than rational thinking. We’ve used mobile technology to overcome the lost time element by employing a Mobile Survey App to get closer to the moment of prescribing which has led to new insights and actions from Big Pharma. Eelke shared how we use System 1 / System 2 theory developed by Daniel Kahneman to establish why prescribing decisions are often driven by emotions which makes conducting research “in-the-moment” so important.