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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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Individuals are never “cured” of addictions. Instead, they learn how to manage their disease to lead healthy, balanced lives.

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Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.

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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).

Male and female plants Male and female plants
African Pygmy Goose - Female African Pygmy Goose - Female
Human Body by Children Human Body by Children
In middle childhood, children spend increasing amounts of time with peers and friends. In middle childhood, children spend increasing amounts of time with peers and friends.
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Video: Covalent bonds - role in the body

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