Hi, Thanks for bringing up a refreshingly new question. In general i.e on a macro level, overall, hospitals are considered a YIN location. Frankly, all of us (doctors & nurses included) have reasonable levels of personal AURA to defend ourselves from YIN elements.  1. Nurses and physicians are in constant motion, generating active Qi. 2. Patients fall into several categories: - Some patients are frail and weak, and these individuals tend to have more YIN. - The majorit