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Did you know?
There are 20 feet of blood vessels in each square inch of human skin.
Did you know?
In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
Did you know?
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.
Did you know?
There are 60,000 miles of blood vessels in every adult human.
Did you know?
Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.