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The average office desk has 400 times more bacteria on it than a toilet.
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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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On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
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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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Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.