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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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Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.
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Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.
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Human kidneys will clean about 1 million gallons of blood in an average lifetime.
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In 1864, the first barbiturate (barbituric acid) was synthesized.