Abstract
The Chapter of "Records on Steam Room(蒸室記)" in "Shandangjip(山堂集)" by CHOI Chungsung is a rare and notable one in that it contains the first concrete and detailed description and view of steam shower in the early Joseon Dynasty. It is known that Choi's Wind stroke(brain stroke) deteriorated due to excessive steam shower. He unreasonably entered the steam room 4 or 5 times a day for 9 consecutive days even though external pathogens had intruded into visceral organs and his energizing chi got less and weaker. By this excessive steam showering, his righteous chi was exhausted and eventually burned out. Given some records in the Annals of the Joseon Dynasty writing that people died due to excessive steam shower, there was no established medical theory on the effect of steam shower before the publication of "Donguibogam(東醫寶鑑)".
