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The familiar sounds of your heart are made by the heart's valves as they open and close.
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Anti-aging claims should not ever be believed. There is no supplement, medication, or any other substance that has been proven to slow or stop the aging process.
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Asthma-like symptoms were first recorded about 3,500 years ago in Egypt. The first manuscript specifically written about asthma was in the year 1190, describing a condition characterized by sudden breathlessness. The treatments listed in this manuscript include chicken soup, herbs, and sexual abstinence.
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Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.
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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.