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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?
When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
Did you know?
Blood is approximately twice as thick as water because of the cells and other components found in it.
Did you know?
Everyone has one nostril that is larger than the other.
Did you know?
There are 20 feet of blood vessels in each square inch of human skin.