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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).
This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.
The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.
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.