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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

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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.

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As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.

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The use of salicylates dates back 2,500 years to Hippocrates’s recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.

A phage cross made by doubly infecting the host cell with parental phages A phage cross made by doubly infecting the host cell with parental phages
An experimentally made Oldowan type core. An experimentally made Oldowan type core.
Functional MRI Scans These scans of human brains show localized average increases in neural activity Functional MRI Scans These scans of human brains show localized average increases in neural activity
Sample of Enzymes Sample of Enzymes
Set the meter to read ohms (V) and measure the resistance of the relay coil. The usual reading for ... Set the meter to read ohms (V) and measure the resistance of the relay coil. The usual reading for ...
Proteins Are Made of Amino Acids Proteins Are Made of Amino Acids
Video: Role of ATP in muscle movement

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