Old people, pregnant women, children. The side effects of suanzaoren goodnight tea are generally stiff tongue and drooling. Ziziphus jujuba seeds can soothe the nerves and replenish blood. But if you eat too long and eat too much, it will also have negative effects. Semen Ziziphi Spinosae has astringent effect. For people who have not eliminated the pathogenic factors of cold or internal fire, eating Ziziphus jujuba seeds can simply keep the pathogenic factors. Some people who eat Ziziphus jujuba seeds for a long time will also have adverse reactions, such as weakness of limbs, stiff tongue and drooling.