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Did you know?
The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.
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More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.
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Medication errors are three times higher among children and infants than with adults.
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There are approximately 3 million unintended pregnancies in the United States each year.