How does the hot guy kill? Trulls your brain, blocks your organs, overloads your heart

The critical point of external risk for disease and death from constant heat is several degrees lower than experts once thought, say researchers who place people in hot boxes to see what happens to them.

With many people in the United States, Mexico, India, and the Middle East suffering from heat waves exacerbated by climate change caused by man, some doctors, physicists, and other experts have explained the Associated Press about what happens to the human body in such heat.

Main body temperature

Basic body temperature in rest mode is usually about 37 degrees Celsius.

This is only 7 degrees (4 ° C) away from the heat attack disaster, says Ollie Jay, a professor of heat and health at Sydney University in Australia, where he runs the earthquake laboratory.

Neil Gandhi, director of emergency medicine at Houston's Methodius Hospital, says that during heat waves, anyone who comes with a temperature of 38 or higher and sees a clear source of infection will be treated for heat fatigue or severe heat attack

We regularly see basic temperatures higher than 40, 41 degrees during several heat episodes”, Gandhi says. A degree or three more, and such a patient is in high risk of death, he added.

How does the heat kill?

Heat kills in three main ways, Jay says. The first common suspicion is the heat shock of critical body temperature increases that cause organ failure.

When body temperature gets very hot, the body turns the flow of blood toward the skin to cool off, Jay says. But this deviates blood and oxygen from the stomach and intestines and may allow toxins that are usually limited to the intestine area to pass into circulation.

This triggers a chain of effects”, Jay says. “Coagulation around the body and multiple organ failure and, finally, death”

But the biggest killer in heat is the burden on the heart, especially for people with cardiovascular disease, Jay adds.

Again, it begins with blood moving toward the skin to help ward off basic heat. This causes blood pressure to decrease. The heart responds by trying to pump more blood to avoid losing its senses.

“You are asking your heart to do much more work than usual”, Jay says. For someone with a heart problem “it's like running toward a one-legged bus. Something will be handed over”.

The third main way is dangerous dehydration. As people sweat, they lose liquids to a point that can severely stress the kidneys, Jay said.

Many people may not understand their risk, Houston's Gandhi said.

Dehydration can advance into shock, causing organ closure from blood shortages, oxygen and nutrients, leading to seizures and death, Dr. Renee Salas, public health professor at Harvard University and an emergency doctor at Massachusetts General Hospital.

“Dehydration can be very dangerous and even deadly to all if it becomes too heavy but is especially dangerous for those with medical condition and in some medications,” said Salas.

Dehydration also reduces blood flow and exacerbates heart problems, Jay said.

Brain Attack

Heat also affects the brain. It may cause a person to have confusion or difficulty thinking, some doctors said.

One of the first symptoms getting worse with heat is if you get confused,” said Professor of Public Health and Climate at Washington University, Chris Abbie. This is not as useful as symptoms because the person suffering from heat is likely not to know him, she said. And it becomes a bigger problem as people age.

One of the classic definitions of shock by heat is a basic body temperature of 104 degrees “combined with cognitive disfunctional disfunctionation,” said professor of physiology at Pennsylvania State University, W. Larry Kenney.

Boasting Matters

Some scientists use a complex measurement of the outer temperature called the wet globe temperature, which takes into account moisture, solar radiation, and wind. In the past, it was thought that a wet globe reading of 35 Celsius was the point when the body began to have problems, said Kenney, who also runs a hotbox lab and has done nearly 600 volunteer tests.

His tests indicate that the danger point of the wet globe is about 30.5 Celsius. That is a figure that has begun to emerge in the Middle East, he said.

And this is only for young and healthy people. For older people, the danger point is a wet globe temperature of 82 (28 degrees Celsius), he said.

The wet heat plants kill many more people than dry heat waves,” said Kenney

When Kenney tested young and old people in dry heat, the new volunteers could operate up to 125.6 degrees (52 degrees Celsius), and the elderly were to stop at 109.4 (43 degrees Celsius). With high or moderate temperatures, people could not function at such high temperatures, he said.

“The moisture affects the ability of sweat to evaporate,” said Jay.