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Blood is approximately twice as thick as water because of the cells and other components found in it.
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Asthma cases in Americans are about 75% higher today than they were in 1980.
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In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.
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Symptoms of kidney problems include a loss of appetite, back pain (which may be sudden and intense), chills, abdominal pain, fluid retention, nausea, the urge to urinate, vomiting, and fever.
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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").