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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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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

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Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.

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Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.

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The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.

The process of X inactivation The process of X inactivation
Small nuclear RNAs (snRNA), 100-200 bp in length, form part of the splicing mechanisms to process mR Small nuclear RNAs (snRNA), 100-200 bp in length, form part of the splicing mechanisms to process mR
Step 3 in the diagnostic process is to retrieve any stored diagnostic trouble codes. Step 3 in the diagnostic process is to retrieve any stored diagnostic trouble codes.
The respiratory system and the process of gas exchange The respiratory system and the process of gas exchange
The General Process of Sensation The General Process of Sensation
Diagrammatic representation of the process of molecular hybridization Diagrammatic representation of the process of molecular hybridization
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