If you REALLY want to understand what your doctor is telling you and how she came to the decisions that she did, then you have to know a little bit about medical statistics. In this episode, we will go over how we make a diagnosis with testing, how to measure benefit of a treatment in relative vs absolute risk reduction , and how to "judge" a study is from a statistical point of view. These concepts are not simple and it may take one or two times through to understand, but in the end it will be worth it. Finally, if you ever want to impress someone at a cocktail party with terms like "Bayesian Analysis" or "P-Value" well here is your chance.