Cedar seed kernel can nourish blood. Cedar seed is sweet and flat in nature. Attributed to the heart, kidney, large intestine meridian. It has the effect of nourishing the heart and tranquilizing the mind, moistening the intestines and relaxing the bowels, stopping sweating and nourishing blood. Mainly used for yin and blood insufficiency, deficiency annoyance (body heat caused by the annoyance) insomnia, palpitations, panic, intestinal dryness constipation, yin deficiency night sweating and other conditions. Caution should be exercised if the feces are thin and unshaped, or if there is excessive dampness and phlegm. Proprietary Chinese medicines containing cypress seed kernel to nourish blood include Cypress Seed Nourishing Heart Pill, which has the effects of tonifying qi, nourishing blood and tranquilizing the mind. It is mainly used for the treatment of heart qi deficiency and coldness, palpitations and panic attacks, insomnia and dreaminess, and forgetfulness. Its adverse reactions and contraindications are not clear at present. It is contraindicated for those with yin deficiency and fire exuberance or hyperactivity of liver yang (exuberant liver yang, causing dizziness, dizziness, headache and other symptoms). The use of Cyperus rotundus requires evidence-based treatment, please consult your doctor before using the drug.