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Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
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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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Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.
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Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.
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Everyone has one nostril that is larger than the other.