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The average adult has about 21 square feet of skin.

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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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In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.

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Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.

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In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

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The universal grammar and emergent grammar viewpoint lead to very different scenarios of the evoluti The universal grammar and emergent grammar viewpoint lead to very different scenarios of the evoluti
Age and Grammatical Knowledge The challenge of learning a second language rises with age. Source: J Age and Grammatical Knowledge The challenge of learning a second language rises with age. Source: J
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Video: Stomach peristalsis - Movement of Food Through the Small Intestine

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