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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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Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.
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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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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
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In 1864, the first barbiturate (barbituric acid) was synthesized.