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After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
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HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.
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Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.
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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.