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Did you know?
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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Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.
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During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.
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Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%
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Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.