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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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Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.
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Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
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On average, the stomach produces 2 L of hydrochloric acid per day.
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Blood is approximately twice as thick as water because of the cells and other components found in it.