Holwborng (Jidguo: ホルモン horumon; hormone) si sinthea lai cit poxhun søeapaw hunpix ee cidlui hoarhak-mih, øe efnghiorng kithvaf poxui ee søeapaw. Kannaf ciør liong ee holwborng tiøh øexsae kaypiexn søeapaw ee taixsia.