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Did you know?
Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.
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Your heart beats over 36 million times a year.
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Asthma cases in Americans are about 75% higher today than they were in 1980.
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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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The longest a person has survived after a heart transplant is 24 years.