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Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.
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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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Approximately 500,000 babies are born each year in the United States to teenage mothers.
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Excessive alcohol use costs the country approximately $235 billion every year.
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Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.