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Did you know?
Illicit drug use costs the United States approximately $181 billion every year.
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According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.
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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
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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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The familiar sounds of your heart are made by the heart's valves as they open and close.