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In 1864, the first barbiturate (barbituric acid) was synthesized.
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Human kidneys will clean about 1 million gallons of blood in an average lifetime.
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Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.
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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.
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Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.