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Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.
More than 4.4billion prescriptions were dispensed within the United States in 2016.
Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.
There are 60,000 miles of blood vessels in every adult human.
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.