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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
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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.
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It is difficult to obtain enough calcium without consuming milk or other dairy foods.
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Thyroid conditions may make getting pregnant impossible.
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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.