This is already known from the research of scientists. According to the results of the study, the tongue of a healthy person is usually pale red in color. In addition, the tongue of a healthy person constantly retains moisture.

If the hemoglobin drops, the tongue becomes pale. The blue color indicates heart disease.

If it turns yellow, it means that there is a serious problem with our gallbladder.

That's why scientists are appealing to the people of the world and advising you to see a doctor immediately if you notice changes in the color of your tongue.

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