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Did you know?
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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In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.
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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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Thyroid conditions may make getting pregnant impossible.
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Blood is approximately twice as thick as water because of the cells and other components found in it.