The 2016 Fayette, Iowa, population is 1,491. There are 1,009 people per square mile (population density). The median age is 22.6. The US median is 37.4. 25.71% of people in Fayette, Iowa, are married. 6.22% are divorced.
During the sweat test , medicine that causes a person to sweat is applied to the skin (usually on the arm or thigh). The sweat is then collected on a paper or a gauze pad, and the amount of salt chemicals in the paper or gauze is measured in a lab. Generally, chloride (sweat chloride) is measured.
The skin is vital to good health because of its ability to regulate  body temperature. The hypothalamus signals the sweat glands to  begin producing perspiration when the bo â¦ dy temperature rises above  normal (approximately 98.6 degrees Fahrenheit). As the perspiration  evaporates from the surface of the body, cooling results. In  addition, during increased body temperature, the blood vessels near  the surface of the skin dilate to release heat to the exterior of  the body; conversely, if the body is too cool, these vessels  constrict to decrease heat loss.