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It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.
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The familiar sounds of your heart are made by the heart's valves as they open and close.
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To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.
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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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It is difficult to obtain enough calcium without consuming milk or other dairy foods.