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Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

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According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.

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The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

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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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Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.

Alan Price - Poor People Alan Price - Poor People
Frank Gehry and Vlado Milunić, Rasin Building (a.k.a. the "Dancing House" or ... Frank Gehry and Vlado Milunić, Rasin Building (a.k.a. the "Dancing House" or ...
Poverty rates have declined in the last 50 years, and the biggest decline has been for people 65 and ... Poverty rates have declined in the last 50 years, and the biggest decline has been for people 65 and ...
Aggregates are people who happen to be in the same place at the same time. Aggregates are people who happen to be in the same place at the same time.
A) Male body louse. (Courtesy of the Centers for Disease Control and Prevention/Frank Collins, Ph.D. ... A) Male body louse. (Courtesy of the Centers for Disease Control and Prevention/Frank Collins, Ph.D. ...
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Video: Pasteur's Experiment

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