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Did you know?
The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.
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Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.
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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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On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
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Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%