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People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.
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Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).
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On average, the stomach produces 2 L of hydrochloric acid per day.
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Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).
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Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.
A typical lubrication system, showing the oil pan, oil pump, oil filter, and oil passages.
A typical ratchet used to rotate a socket. A ratchet makes a ratcheting noise when it is being ...
Typical ignition timing map developed from testing and used by the vehicle computer to provide the ...
Typical Startup Cost Categories
A typical reaction in which NAD+ acts as an oxidizing agent
A diagram of a typical DNA cloning plasmid