There is no such thing as “large doses of Poria can cure insomnia”. Poria can cure insomnia, considering that insomnia is caused by the deficiency of the heart and spleen (weakness of the heart and spleen organs), and has the effect of calming the heart and tranquilizing the mind, strengthening the spleen and stomach (restoring the functions of the spleen and stomach), etc. Poria is sweet, light and flat in nature. Poria is sweet and light in flavor, flat in nature, and belongs to the heart, spleen and kidney meridians, belonging to a kind of traditional Chinese medicine, which has the effect of inducing drainage and seepage of dampness (promoting the flow of water to dispel dampness), strengthening the spleen and tranquilizing the heart. Clinically, there is no such thing as a large dose of Poria to treat insomnia, and the clinical dosage of Poria is based on the patient’s condition, constitution and other aspects of the specific situation. The reason why Poria can treat insomnia is mostly considered to be because insomnia is caused by the deficiency of the heart and spleen (weakness of the heart and spleen organs), thus it can have the effect of calming the heart and tranquilizing the mind and strengthening the spleen. However, for other types of insomnia, Poria is generally not effective. All in all, people suffering from insomnia need to go to the hospital and follow the doctor’s prescription for medication, and should not use Poria on their own.