Anemia can cause insufficient blood supply to the brain. When the body is anemic, the content of red blood cells and hemoglobin in the blood will decrease, and the oxygen-carrying capacity of red blood cells will also gradually decrease, and the amount of oxygen intake will also decrease, which will slowly lead to tissue hypoxia, resulting in insufficient blood supply to the brain and symptoms such as weakness, general weakness and drowsiness. If the lack of blood supply to the brain lasts for a long time, it will cause the brain to lose its function, followed by headache, dizziness, insomnia, memory loss, slow movement and other symptoms. It is recommended to go to the hematology department of the hospital to check the blood routine, and after the diagnosis is confirmed, you can take the correct blood medicine under the guidance of the physician to treat the condition. You must increase nutrition in your daily diet, eat more high-protein and iron-rich foods, such as egg yolk, pig liver, pig blood, eat more red dates, red beans, adzuki beans, red flowers, etc., and pay attention to rest.