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Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.
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Human kidneys will clean about 1 million gallons of blood in an average lifetime.
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According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.
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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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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.