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Did you know?

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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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

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Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.

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Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).

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The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.

Evolutionary tree based on comparisons of cytochrome c DNA Evolutionary tree based on comparisons of cytochrome c DNA
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Anatomy of the heart. Remember: It is labeled right and left based on the patient’s perspective. Anatomy of the heart. Remember: It is labeled right and left based on the patient’s perspective.
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Video: Mendel's Principles of Inheritance (Father of Genetics)

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