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Did you know?
There are more nerve cells in one human brain than there are stars in the Milky Way.
Did you know?
Your heart beats over 36 million times a year.
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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.
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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.