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Did you know?

Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.

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There are 20 feet of blood vessels in each square inch of human skin.

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Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).

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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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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

Aerial view of old hutong area, Beijing. Aerial view of old hutong area, Beijing.
How to evaluate third-order determinants by Minors Method (Question 1) How to evaluate third-order determinants by Minors Method (Question 1)
How to use Cramer's rule to solve a second-order determinant (Question 2) How to use Cramer's rule to solve a second-order determinant (Question 2)
Higher-Order Conditioning Higher-Order Conditioning
In order to encourage Canadians to avoid cross border shopping, Walmart Canada is striving to ... In order to encourage Canadians to avoid cross border shopping, Walmart Canada is striving to ...
Video: Definition of heart rate

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