This episode covers a historically, if not currently, important herb with ramifications in alchemy and the basis of chemistry: Zhu Sha (Cinnabar). Each episode covers another traditional herb from somewhere in the world and goes into great depth about it. Besides covering the basics of the herb including its traditional use and functions, we will explore the history, quality, science, pharmacology, evidence, and any potential interactions of each herb. And then there is always something a little quirky about an episode. This episode discusses alchemy in China and explains nei dan (internal alchemy) and wai dan (external alchemy). Please join us for our latest herbal and historical exploration!