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In 1864, the first barbiturate (barbituric acid) was synthesized.
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Symptoms of kidney problems include a loss of appetite, back pain (which may be sudden and intense), chills, abdominal pain, fluid retention, nausea, the urge to urinate, vomiting, and fever.
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Blood is approximately twice as thick as water because of the cells and other components found in it.
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According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.
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The longest a person has survived after a heart transplant is 24 years.