The phlegmatic temperament is prone to water retention, cold stomachs, insufficient secretion of digestive juices (e.g., hydrochloric acid), poor assimilation, anemia, and flatulence.

• 粘液（冷静）气质倾向于水储留、胃寒、消化液分泌不足（如胃酸）、消化不良、贫血和脘腹涨痛。