Taoist sexual alchemy
Refers to historical Taoist practices aimed at prolonging life through sexual techniques. The term is technical and primarily encountered in historical or esoteric contexts.
Bōchūjutsu is considered one of the life-nourishing practices in ancient Chinese Taoism.
From Chinese 房中術 (fángzhōngshù), literally 'bedchamber arts'. The exact historical derivation is uncertain; the term is conventionally associated with Taoist sexual practices.