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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.
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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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About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
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The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.