We will start delving into how doctors and the medical system can fool you by using various statistical tricks, models, and deceptive declarations of fact.  No disease is more illustrative of this than atrial fibrillation (afib), which is a heart condition that is a multi-billion dollar business.  Whether you have afib or not, learning about it can help you understand the most basic concepts of how to interpret the risks and benefits of what your doctor tells you is "necessary and life saving!"  We will break the discussion of this into various episodes, and then use what we learn to talk about other more common conditions.  As we will see, what "experts" and your doctor tell you may be far from the reality of what they are peddling.