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Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.

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It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.

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Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.

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Adults are resistant to the bacterium that causes Botulism. These bacteria thrive in honey – therefore, honey should never be given to infants since their immune systems are not yet resistant.

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Certain rare plants containing cyanide include apricot pits and a type of potato called cassava. Fortunately, only chronic or massive ingestion of any of these plants can lead to serious poisoning.

The Placebo Effect The Placebo Effect
Average Global Temperature during the Phanerozoic Average Global Temperature during the Phanerozoic
Example of coastal cities Recharge Rates Example of coastal cities Recharge Rates
Find the temperature of the room (above the outside temperature) at the end of 120 min Find the temperature of the room (above the outside temperature) at the end of 120 min
Adjust the water coming from the faucet so that the temperature is comfortable. Water too hot can ... Adjust the water coming from the faucet so that the temperature is comfortable. Water too hot can ...
Effect of a Tax Effect of a Tax
Video: Introduction to Spirometry

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