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Did you know?
More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.
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People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.
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Human kidneys will clean about 1 million gallons of blood in an average lifetime.
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The human body produces and destroys 15 million blood cells every second.
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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.