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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
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Asthma-like symptoms were first recorded about 3,500 years ago in Egypt. The first manuscript specifically written about asthma was in the year 1190, describing a condition characterized by sudden breathlessness. The treatments listed in this manuscript include chicken soup, herbs, and sexual abstinence.
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Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.
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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.
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For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.
A male American redstart, Setophaga ruticilla.
Reindeer antlers grow again each year under a layer of fur called velvet. This reindeer is losing th
The Basilar Membrane of the Cochlea and Theories of Hearing
Some clues about the importance of language experience come from the tragic case of Genie, a girl ...
Loud Music and Hearing Loss (2 of 2)
Estimated number of new HIV infections per year over time period in Canada