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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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Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.
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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.
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According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.