Drinking cassia seed tea generally does not cause insomnia. Insomnia generally belongs to the Chinese medicine “insomnia” category, consider the emotional injury, dietary disorders, work and rest disorders, prolonged illness and other factors cause disorders of the internal organs, qi and blood disharmony, yin and yang disorders, yang and yin, there is no research to show that cassia seed tea will lead to insomnia. Cassia seeds, with clearing heat and eyesight (to get rid of the body heat, promote vision recovery), laxative effect. Used for eye redness and astringency, shyness and tearfulness (eyes afraid of light, often tears), headache and dizziness, dark eyes, constipation. Cassia seeds for liver fire attack, eye redness, swelling and pain, shyness and tearfulness, etc., often with psyllium, celosia and other liver clearing eye (clear liver fire to promote vision recovery) medicine; cassia seeds for wind-heat eye disease, often with chrysanthemums, jasmine and other wind-heat clearing medicine. However, the effective dose of cassia seeds in water is limited, it is difficult to achieve the above effect, it is recommended to follow the doctor’s instructions.