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Author Question: Although there is no precise tally of homeless people, most estimates suggest that about how many ... (Read 42 times) |
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).
Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.
The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
Human kidneys will clean about 1 million gallons of blood in an average lifetime.
According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.