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Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.
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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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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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Addicts to opiates often avoid treatment because they are afraid of withdrawal. Though unpleasant, with proper management, withdrawal is rarely fatal and passes relatively quickly.
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Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.
![The Cordulegastridae are a family of Odonata (dragonflies) from the suborder Anisoptera. They are co](https://biology-forums.com/gallery/47/medium_12359_26_04_12_5_12_28.jpeg)
![Lestidae is a rather small family of cosmopolitan, large-sized, slender damselflies. They are of the](https://biology-forums.com/gallery/47/medium_12359_26_04_12_9_45_30.jpeg)