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There are 60,000 miles of blood vessels in every adult human.
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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.
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Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.