When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).
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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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If all the neurons in the human body were lined up, they would stretch more than 600 miles.
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The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.
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The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.
