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Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.
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.
Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%
More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.
When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.