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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).
Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.
Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
People about to have surgery must tell their health care providers about all supplements they take.
Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.