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Author Question: Compared with teachers in top-performing countries, a higher number of U.S. teachers do not have a ... (Read 51 times) |
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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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.
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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
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The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.