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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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Asthma-like symptoms were first recorded about 3,500 years ago in Egypt. The first manuscript specifically written about asthma was in the year 1190, describing a condition characterized by sudden breathlessness. The treatments listed in this manuscript include chicken soup, herbs, and sexual abstinence.

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The human body's pharmacokinetics are quite varied. Our hair holds onto drugs longer than our urine, blood, or saliva. For example, alcohol can be detected in the hair for up to 90 days after it was consumed. The same is true for marijuana, cocaine, ecstasy, heroin, methamphetamine, and nicotine.

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Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.

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According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.

Saline Groundwater in the United States Saline Groundwater in the United States
Generally, the total tax burden in the United States is much lower than that of other industrialize Generally, the total tax burden in the United States is much lower than that of other industrialize
The United States under the Articles of Confederation, 1787 The United States under the Articles of Confederation, 1787
In the past year, about one in five adults in the United States reported symptoms of anxiety ... In the past year, about one in five adults in the United States reported symptoms of anxiety ...
The cultural script in the United States is for males to be the initiators and females the ... The cultural script in the United States is for males to be the initiators and females the ...
Gypsy moths native to Europe and Asia feed on oaks through much of the United States. Gypsy moths native to Europe and Asia feed on oaks through much of the United States.
Video: Muscular Dystrophy

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