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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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There are more nerve cells in one human brain than there are stars in the Milky Way.
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Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).
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More than 4.4billion prescriptions were dispensed within the United States in 2016.
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Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.