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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Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.
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The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.
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As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.
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The human body produces and destroys 15 million blood cells every second.
A fixed action pattern elicited by a sign stimulus.
Survivorship curve for the North American beaver.
20,000 year old Arctic ground squirrel mummy
Gas pressure loss and venturi flowmeter
A promissory note has a face value of $6000 and it has a date of issue of June 1 this year. The ...
American Toad