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It is mildew caused by moisture.
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It was damp because there were Han stains left on it.
It should be that the metal gusset has corroded, causing surface oxidation.
Generally, because people have been lying down and sleeping all night, our blood has been accustomed to this upper and lower height circulation, and we are together in the morning, the upper and lower height difference is immediately adjusted to the highest, and there will be a temporary lack of blood supply, so people are a little dizzy.
Because the window will leak air, it must have an effect on the body if it blows to the head frequently.
1. Anemia, anemia is a problem that many people have, if the human body does not have enough blood, it will lead to a lack of oxygen to the brain, and just wake up in the morning, because the brain can not get some oxygen and blood immediately, so it is not surprising that there is dizziness. >>>More
What a pain, sometimes a small cold can also cause headaches.