Reishi — known as lingzhi in Chinese — has over two thousand years of history in Traditional Eastern Medicine, and just as many myths swirling around it today. This quick knowledge check covers reishi's place in classical texts, how it grows, why it tastes so bitter, how it is traditionally prepared, and which popular claims don't hold up. Educational only — this quiz is not medical advice and does not diagnose, treat, cure, or prevent any condition.