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.
Did you know?
The largest baby ever born weighed more than 23 pounds but died just 11 hours after his birth in 1879. The largest surviving baby was born in October 2009 in Sumatra, Indonesia, and weighed an astounding 19.2 pounds at birth.
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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.
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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
Major Events in the History of Psychology (5 of 6)
Major Events in the History of Psychology (6 of 6)