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There are approximately 3 million unintended pregnancies in the United States each year.
About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.
Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.
When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
There are more nerve cells in one human brain than there are stars in the Milky Way.
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