Entrance to schoolGive plenty of high concentration of fresh oxygen every dayAlways charge the brain, keep your brain alive, improve your memory, learn without getting tired, and worry about your mother.Does the child use excessive brain to cause hypoxia in the brain?"Spring sleepy autumn" is the main manifestation of hypoxia in the brain. Memory decline, slow response, decreased academic performance, dizziness, lethargy, confusionFashion white-collar office choiceGive enough high-concentration fresh oxygen every day to help the parents to get rid of fatigue, improve work efficiency, and get rid of sub-health statusNearly closed office! Whose breath did you breathe?More than 1500 kinds of chemical and bacterial pollution computer radiation, second-hand smoke, formaldehyde, dust mites, etc., distracting attention, reducing immunity, easy to get irritated, dark yellow skin, rough, acne breeding
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