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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Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.
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Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.
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Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.
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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
Giant African land snails
The Distribution of the World's Land and Population