Most of the sleeping we do is of the SWS variety, characterized by large, slow brain waves, relaxed muscles and slow, deep breathing, which may help the brain and body to recuperate after a long day. When we fall asleep, the brain does not merely go offline, as implied by the common phrase âout like a light.â Instead a series of highly orchestrated events puts the brain to sleep in stages. Technically sleep starts in the brain areas that produce SWS.
Knoxville is a city in Knox County, Illinois, United States. The population was 3,495 at the 2010 census. It is part of the Galesburg Micropolitan Statistical Area.
The race breakdown of the population in Knoxville varies per year, but currently 171,165 are one race and 2,725 are two or more races. Of the 173,890 people who live in Knoxville, there are 42,591 under 20 years old. The sex breakdown of the 20 years old and younger population in Knoxville is 21,628 male and 20,963 female.