Heterophilia
Apexia is a very complex syndrome of a variety of diseases caused by metabolic disorders and abnormal taste. Poisonous birds are not necessarily all nutrient deficiencies and metabolic disorders. Some are vicious and some are vicious. Therefore, in a broad sense, vulgaris also include vulgaris. People with this disease constantly bite some non-nutritive substances, such as dirt, paper, dirt, etc. In the past, people have always thought that pica is mainly caused by the lack of trace elements such as zinc and iron in the body. At present, more and more doctors believe that pica is mainly caused by psychological factors. But there has been no substantial progress in its true cause and treatment.
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