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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Human kidneys will clean about 1 million gallons of blood in an average lifetime.
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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
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It is widely believed that giving a daily oral dose of aspirin to heart attack patients improves their chances of survival because the aspirin blocks the formation of new blood clots.
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The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.
Terminology for Movement Produced by Muscles
Major components and functions of the nervous system.