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Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.
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According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.
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After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.
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Cyanide works by making the human body unable to use oxygen.
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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.