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It is difficult to obtain enough calcium without consuming milk or other dairy foods.
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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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There are more nerve cells in one human brain than there are stars in the Milky Way.
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More than 30% of American adults, and about 12% of children utilize health care approaches that were developed outside of conventional medicine.
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Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.