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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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According to the Migraine Research Foundation, migraines are the third most prevalent illness in the world. Women are most affected (18%), followed by children of both sexes (10%), and men (6%).
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In 1864, the first barbiturate (barbituric acid) was synthesized.
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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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Blood is approximately twice as thick as water because of the cells and other components found in it.