What is the highest temperature the human body can withstand – research
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Scientists have been able to determine the maximum mixture of heat and humidity that the human body can withstand. Normally, within six hours of heat at a temperature of 35 degrees Celsius with 100% humidity, a healthy young person will die, but new research shows that the threshold may be much lower, writes Science Alert. Human sweat is the main tool for reducing temperature. But under such conditions, it no longer evaporates from the skin. This can lead to heat stroke and organ failure, even death. In the world, the critical temperature limit according to the wet thermometer was violated about a dozen times – in South Asia and the Persian Gulf. Then this level lasted no more than 2 hours. Photo: picture alliance/Gettyimages.com Because of this, mass mortality events have not been recorded, said Colin Raymond of NASA’s Jet Propulsion Laboratory, who led a large-scale study on the subject. At the same time, according to experts, everyone has a different perception threshold – it depends on age, health and other factors. But as the global temperature rises, scientists warn that dangerous phenomena will spread because of it. The intensity of such events has doubled, which is caused by human activity. Raymond’s research indicates that the theorized human survival limit of 35 degrees Celsius wet temperature means 35 degrees Celsius dry heat plus 100 percent humidity, or 46 degrees Celsius at 50 percent humidity. To verify the statement, the temperature inside healthy and young people was measured in a thermal chamber. So it was found that the participants reached a critical limit, when their body could not stop the continued increase in internal temperature. This happened at a remarkable 30.6 Celsius on the wet bulb, well below the theoretical 35. Joy Monteiro, a researcher from India, also published the study in the journal Nature. He found that most of the deadly heat waves were recorded in the region where the wet bulb temperature was below 35 degrees Celsius. The scientist points out that children are at the greatest risk. They regulate their body temperature worse. Elderly people who have fewer sweat glands and ordinary workers who work in the sun are quite vulnerable. But other factors play an important role – the cooling process, the possibility of shelter, etc. “Like many other effects of climate change, the people who are least able to protect themselves from these extremes will suffer the most,” Raymond said. According to him, the wet bulb temperature is also closely related to the ocean surface temperature. We told you that this year she broke the world record. In addition, the world experienced the hottest week on record in July. Read also: Temperature records in July are related to climate change – scientists
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