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Did you know?
The familiar sounds of your heart are made by the heart's valves as they open and close.
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Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.
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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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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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On average, the stomach produces 2 L of hydrochloric acid per day.