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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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Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.

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Medication errors are more common among seriously ill patients than with those with minor conditions.

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The average office desk has 400 times more bacteria on it than a toilet.

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There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

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