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More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.

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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

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The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).

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Colchicine is a highly poisonous alkaloid originally extracted from a type of saffron plant that is used mainly to treat gout.

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Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.

Impacts of glaciers on landscapes can be seen as (a) a U-shaped valley in Labrador, (b) a drumlin fi Impacts of glaciers on landscapes can be seen as (a) a U-shaped valley in Labrador, (b) a drumlin fi
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