How much temperature is the human body overwhelming?

Intense heat in Asia, Europe and North America breaks numerous records every day and affects millions of people over the course of temperature and moisture above usual. In general, the Earth has probably experienced the hottest weeks recorded in contemporary history. The waves of heat have become longer, more severe, and hotter. The human tolerance of the heat of the air is not only related to the temperature you see on the thermometer; Rather, it depends on the amount of moisture. We will read more about this. (How Stuff Works)

Scientists and experts warn of the increased heat with high humidity. In a study published in Year 2, it was assumed that the wet bubble temperature up to 2 degrees Celsius is the highest immunity for the human body. The wet bubble temperature in this study was equivalent to 2 ° C with 2 % moisture or 2 ° C with 2 % moisture. According to this study, at more than 2 degrees Celsius, the body can no longer keep its central temperature by evaporation; Of course, the results of recent experiments have raised more concerns. The Wet-Bulb Temperature is a criterion that measures the temperature and humidity of the air at the same time. This temperature shows how much the air can cool through evaporation and its role is vital to humans.

Photographer: Unknown / howstuffworks

To answer the question, “How much can the body endure heat?”, Young and healthy men and women were exposed to heat in a room at the Pennsylvania State University. In these experiments, known as the Heat project, each participant swallows a small capsule that constantly measured his central body temperature. They would then be present in the controlled room and did a day -to -day work, such as showering, cooking or eating. Researchers slowly increased temperature or humidity until the body’s central temperature began to increase.

Photographer: Unknown / Polygiene

The combination of temperature and moisture that causes the body’s central temperature to rise continuously is called “Critical Environmental Limit”. The following, the body can keep its temperature stable for a long time; Above this, the temperature increases continuously and the risk of heat -related diseases increases with prolonged exposure.

When the body is too hot, the heart must work harder to excrete heat by pumping more blood to the skin. At the same time, sweating reduces body fluids. In the worst case, prolonged placement in such conditions can lead to severe warming, which is an emergency and life -threatening condition and requires urgent cooling and medical treatment.

Photographer: Unknown / varmatin.com

Studies at the University of Pennsylvania on young and healthy people showed that the threshold of human tolerance is even below 2 degrees Celsius. This limit reaches a temperature of 2 % moisture to about 2 ° C and in relative humidity (2 to 5 % moisture) to 2 ° C.

Current heat waves in the world have crossed critical thresholds and even approach or exceed the 2 degrees Celsius the wet bubble temperature. Assaluyeh in Iran, on July 1, reached a very dangerous wet bubble temperature of 1.5 ° C. India and Pakistan have also achieved similar dangerous levels in recent years.

Photographer: Unknown / Slate.com

In hot and dry areas, the critical threshold is not determined by the temperature of the wet bubble; Because almost all the sweat of the body evaporates and the body cools; But human sweating power is limited, and at very high temperatures, the body also absorbs heat from the surrounding air. These thresholds are only intended to prevent excessive body temperature rising. Even lower temperatures and humidity can put significant pressure on the heart and other organs.

Recent research has shown that heart rate rises to the skin before the central temperature rises due to blood pumping. Although crossing a critical level does not necessarily mean immediate risk, long -term location can be dangerous for vulnerable people such as the elderly and chronic patients.

Enough consumption of water and finding places to cool, even for a short period of time, is important in extreme heat. However, in the current situation, even those with access to the air conditioner may not use it due to high cost of energy or extensive power outages. The evidence is increasingly indicating that climate change is not just a problem for the future; Rather, it is now a challenge to humanity and it must be seriously countered.

Photographer: Unknown / engroo blog

What do you think about the increasing heat of the summer and the crises that result from? What tricks do you use to counter heat? Share your views and experiences with us and other users.

Cover Photo Source: varmatin.com Photographer: Unknown