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Did you know?
Approximately 500,000 babies are born each year in the United States to teenage mothers.
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If all the neurons in the human body were lined up, they would stretch more than 600 miles.
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Vaccines prevent between 2.5 and 4 million deaths every year.
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A headache when you wake up in the morning is indicative of sinusitis. Other symptoms of sinusitis can include fever, weakness, tiredness, a cough that may be more severe at night, and a runny nose or nasal congestion.
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Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.