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The shortest mature adult human of whom there is independent evidence was Gul Mohammed in India. In 1990, he was measured in New Delhi and stood 22.5 inches tall.

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More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.

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The human body produces and destroys 15 million blood cells every second.

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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 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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