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Author Question: Swimming against the current is an excellent aerobic exercise. The italicized phrase is an example ... (Read 39 times) |
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The average adult has about 21 square feet of skin.
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On average, the stomach produces 2 L of hydrochloric acid per day.
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About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.
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In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.
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Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.