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Did you know?
Asthma cases in Americans are about 75% higher today than they were in 1980.
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Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.
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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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Approximately 500,000 babies are born each year in the United States to teenage mothers.
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Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.