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Did you know?

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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Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.

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Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.

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Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.

Did you know?

About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

Concept map of disease and immune system Concept map of disease and immune system
lymphatic system lymphatic system
Pressure testing the cooling system. A typical hand-operated pressure tester applies pressure equal ... Pressure testing the cooling system. A typical hand-operated pressure tester applies pressure equal ...
The respiratory system. The respiratory system.
The Hazardous Materials Identification System is used to label containers that hold hazardous ... The Hazardous Materials Identification System is used to label containers that hold hazardous ...
Action of the DNA uracil repair system Action of the DNA uracil repair system
Video: Introduction to Breast Cancer

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