There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
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Asthma cases in Americans are about 75% higher today than they were in 1980.
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A headache when you wake up in the morning is indicative of sinusitis. Other symptoms of sinusitis can include fever, weakness, tiredness, a cough that may be more severe at night, and a runny nose or nasal congestion.
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About 60% of newborn infants in the United States are jaundiced; that is, they look yellow. Kernicterus is a form of brain damage caused by excessive jaundice. When babies begin to be affected by excessive jaundice and begin to have brain damage, they become excessively lethargic.
