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Did you know?
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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Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.
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The average office desk has 400 times more bacteria on it than a toilet.
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Cyanide works by making the human body unable to use oxygen.
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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.