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Asthma cases in Americans are about 75% higher today than they were in 1980.
Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.
Blood is approximately twice as thick as water because of the cells and other components found in it.
On average, the stomach produces 2 L of hydrochloric acid per day.
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