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Did you know?
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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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.
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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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Thyroid conditions may make getting pregnant impossible.