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Asthma cases in Americans are about 75% higher today than they were in 1980.
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As many as 28% of hospitalized patients requiring mechanical ventilators to help them breathe (for more than 48 hours) will develop ventilator-associated pneumonia. Current therapy involves intravenous antibiotics, but new antibiotics that can be inhaled (and more directly treat the infection) are being developed.
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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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Green tea is able to stop the scent of garlic or onion from causing bad breath.
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The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.