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According to the Migraine Research Foundation, migraines are the third most prevalent illness in the world. Women are most affected (18%), followed by children of both sexes (10%), and men (6%).

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In 1844, Charles Goodyear obtained the first patent for a rubber condom.

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A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.

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People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.

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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).

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