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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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Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.
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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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In 1864, the first barbiturate (barbituric acid) was synthesized.