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Patients who have undergone chemotherapy for the treatment of cancer often complain of a lack of mental focus; memory loss; and a general diminution in abilities such as multitasking, attention span, and general mental agility.

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Blood is approximately twice as thick as water because of the cells and other components found in it.

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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.

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Your heart beats over 36 million times a year.

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If you could remove all of your skin, it would weigh up to 5 pounds.

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