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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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People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.
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Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.
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In 1864, the first barbiturate (barbituric acid) was synthesized.
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Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.