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Author Question: Based upon the Gram stain reaction bacteria are classified as Gram-positive or Gram-negative. ... (Read 117 times) |
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The human body produces and destroys 15 million blood cells every second.
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Asthma cases in Americans are about 75% higher today than they were in 1980.
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About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.
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Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.
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Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.