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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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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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Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
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Vaccines prevent between 2.5 and 4 million deaths every year.
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More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.