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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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Your heart beats over 36 million times a year.
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Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.
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If all the neurons in the human body were lined up, they would stretch more than 600 miles.
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More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.