Effects of Body Overheating (At Night Too)
“It is noticed that increased temperatures and overheating intensify breathing not only in dogs, but in people too. This is especially noticeable in children.”
Dr. Buteyko KP, Public lecture in the Moscow State University, 1972.
Overheating, according to Doctor Buteyko, is a factor that intensifies breathing. That especially relates to children, who can suffer from the belief of their loving parents and care-takers that warm dressing is good and healthy. A child's metabolism is about 2-3 times higher than an adult's. Hence, their bodies generate much more energy. Hence, healthy children require much less clothing (Buteyko, 1977). When quite healthy children wear minimum clothing, it is possible to notice that their feet and hands are warm. Only if their feet and hands become cold, warmer clothing or some other actions are useful. Overheating naturally leads to mouth breathing in children with all the described effects, including poor health and the advance of all chronic diseases.
Similar ideas can be applied to grown-ups or adults. During summers, most modern people wear t-shirts, shirts, dresses and other light clothes, while going everywhere, outdoors and indoors. When the weather gets colder, people start to wear sweaters, jumpers, pullovers, jackets, suits, coats, etc. However, they continue to wear these heavy clothes when they are indoors, where the temperatures are higher. You can observe this phenomenon in shops and waiting rooms, libraries and offices, cars and public transport.
Investigations on the influence of overheating on breathing revealed that changes in air temperature, from 17 to about 40 degrees, caused a fall in CO2 pressure from 44 to 33 mmHg for healthy male subjects (Gaudio & Neil, 1968). Hence, overheating results in severe hyperventilation (overbreathing) and accompanying hypocapnia (CO2 deficiency). After some math, if we use the Buteyko Table of Health Zones, it follows, that their CP (Control Pause) results fell from 46 to about 8 s only due to the effects of strong heat. Hence, if we assume linear dependence between temperature and CP (although this may not be correct for the range of values), we can conclude that each 2 degrees of increased surrounding temperature produce about 2 s CP drop.
Overheating at night
Overheating is a large contributing factor to mortality and miserable health states in sick and even relatively healthy people during sleep at night and during early morning hours due to the Morning Hyperventilation Effect. In severe cases, hyperventilation at night can lead to excessive sweating and additional overheating.
Effects of cold temperature
Sudden exposure to cold temperature can increase breathing as well. E.g., sudden cold immersion usually produces severe overbreathing during the first few breaths. This effect is discussed on a page devoted to cold showers.
However, it should be kept in mind that when one's CP is less than 20 s, they are predisposed to colds and infections due to the reversal of the citric acid cycle and poor immune function. As a result, people with low CPs (less than 20 s), should keep themselves warm. When the CP gets higher (more than 20 s), human tolerance to cold temperatures is greatly improved and having a cold environment becomes a positive factor for further CP growth.
Conclusions. Keep yourself comfortably warm, if your current CP is less than 20 s, and cool 24/7, of you have more than 20 s CP.
Furthermore, when one's CP is over 20 s, it is beneficial to use cold water while following certain rules: Module 12: Cold Shower Benefits and Rules
References
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