Sour jujube kernel is used to nourish the heart and tonify the liver, calm the heart and tranquilize the mind, astringent sweating, and generating fluids. It is used for diseases related to deficiency and insomnia (void and restlessness, inability to sleep), palpitations and dreaming (palpitations and frequent dreaming), excessive sweating in a weak body, and thirst due to injury of the body fluids. Sour jujube seed is a drug that nourishes the heart and calms the mind (stabilizes the mind by nourishing the heart), and is classified in the heart, liver and gallbladder meridians. Its effects are mainly to nourish the heart and benefit the liver, calm the mind, and generate fluid and astringent sweating, and it is mostly used in clinical treatments for heart and mind restlessness, insomnia and false annoyance (annoyance caused by deficiency heat in the body), palpitations and night sweating (abnormal sweating after falling asleep, but stopping sweating after awakening), and sweating and injuring the fluid and other diseases related to the heart and liver systems. Sour date kernel has astringent and astringent properties, and is contraindicated for those with solid internal evils and allergies, and is used with caution for those with weak spleen and stomach and diarrhea, with unclear adverse effects. Patients are advised to consult a traditional Chinese medicine practitioner for evidence-based guidance, follow the doctor’s instructions and do not blindly use the drug on their own.