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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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Approximately 500,000 babies are born each year in the United States to teenage mothers.
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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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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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One way to reduce acid reflux is to lose two or three pounds. Most people lose weight in the belly area first when they increase exercise, meaning that heartburn can be reduced quickly by this method.