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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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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.
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Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.
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Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).