The human body produces and destroys 15 million blood cells every second.
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Everyone has one nostril that is larger than the other.
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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
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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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Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.
Measles. A photograph of a child stricken with measles, showing the tell-tale sign of the skin rash.
Precious Child
Karl Marx (1818–1883) believed that the roots of human misery lay in class conflict, the ...
Transmission of autosomal dominant disorders (50% chance for an affected child).
Developing Child, The
Dolphin’s ability to understand an artificial language