There are 20 feet of blood vessels in each square inch of human skin.
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Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.
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Cyanide works by making the human body unable to use oxygen.
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Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.
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Human kidneys will clean about 1 million gallons of blood in an average lifetime.
Stem cells in late development
Stem Cell Research Could Expand Clinical Use of Regenerative Human Cells
Pacemaker
Measuring Electrical Charge
Effects of viruses on their host cells.
X-ray showing pneumonia. Fluid and blood cells fill the lungs