By Bart Haex
A synergy of actual, mental, and physiological stipulations impacts the psychological and actual caliber of sleep. even supposing a lot has been written approximately this factor, little has been based on genuine learn, till now.
Back and mattress: Ergonomic features of sound asleep is the 1st e-book to scientifically characteristic the connection among ergonomic elements and the standard of sleep. It describes the professionals and cons of other forms of mattresses, helping buildings, head cushions, and napping postures.
This quantity defines and combines a number of facets of sleep caliber and identifies the underlying ergonomic parameters for every of those features. in accordance with cutting-edge, in-depth examine, this publication additionally illustrates how again aid should be evaluated and optimized for somebody or for a inhabitants crew. it's a important source for researchers, clinicians, physicians, ergonomists, brands and retailers and is out there to a person who practices the artwork of sleep.
Read or Download Back and Bed: Ergonomic Aspects of Sleeping PDF
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Extra resources for Back and Bed: Ergonomic Aspects of Sleeping
5%) gets by on 4 hours of sleep; these people often do “power naps” to catch up on their sleep. 5). 5 hours. Which ergonomic factors affect the quality of sleep? 23 Recent literature (Grandner and Kripke 2004) suggests that people who sleep for 8 hours or more every night have a higher death rate than those who average 6 to 7 hours, but this study has been criticized because of the subjective measures used. Other studies show that sleeping longer is better, so the actual literature is not consistent on this subject.
In ordinary temperatures, sweating will occur, and the body can regulate its internal thermostat. When the environment becomes as warm as the skin, or clothing impedes the evaporation of sweat, the body can no longer regulate itself, and heat stress will occur. Continuous sweating causes excessive loss of body water and salt, which upsets the heat-regulating mechanisms of the body. Hyperthermia is defined as an abnormally high body temperature, which is sometimes induced (as in treating some forms of cancer).
39 winter Bedouins may have separate stone houses for women and for men. During the summer, they sleep on mattresses in open-sided tents made from goat-hair. Such a tent is customarily divided into two sections by a woven curtain. One section, reserved for the men and for the reception of most guests, is called the “mag’ad” or sitting place. 2 Evolution of Sleeping Behavior Few characteristics of sleep in the past have been examined. Apart from references to the sleep habits of communities before the industrial revolution (Ekirch 2001), only the subject of dreams has drawn sustained attention (Steiner 1996).