How does hot weather affect the human body?

Overheating weather conditions will destroy the body's natural cooling system, causing damage and eventually death.

How does hot weather affect human health?

More than 1,800 people were killed in the worst heat wave in Indian history. The temperature reached nearly 50 ° C, causing the roads in New Delhi to melt and scorch trees in the area.

Aftab Ahmad - medical expert at Apollo Health City Hospital said there are many reasons for death."One of them is climate adaptation," he told The Times of India. "This year, the temperature changes dramatically. This disturbs the body's defense mechanism."

The harsh climate in India has inadvertently reminded us how vulnerable our bodies are. Unable to adapt to hot conditions, people are prone to heatstroke and severe dehydration. Claude Piantadosi, director of Duke Medical Center, said humans cannot survive for long periods of time, at temperatures exceeding body temperature.

Cooling mechanism

Normally, the body cools itself by releasing energy into the external environment, through the skin surface. The hotter the environment temperature, the harder it is to work. At nearly 38 ° C, the system reverses and the heat flows back into the body.

At that time, people depended on a second cooling mechanism: sweat . Sweat heats up, turns into steam, reduces the temperature inside the body.

However, high humidity interferes with sweating. Sweat then does not evaporate due to saturation with air humidity. " The combination of high temperature and humidity is actually quite dangerous, " Piantadosi said. " It defeats our radiator mechanism."

Worst case

Be aware that sweat regulation only works if we drink enough water to compensate for water loss. Without enough water, the body begins to lose water. Blood circulation to the skin decreases, thereby preventing the ability to sweat. Body temperature begins to heat up.

Danger of stalking when body temperature reaches 40 ° C. At 40.5 ° C, people are at risk of heat stroke. When heat reaches 42 ° C, organs are damaged, resulting in death.

Hot sun melted a road in New Delhi (India).

A normal, healthy person, who does not adapt to high temperatures, in hot conditions will pour 1.5 liters of sweat every hour. Some people adapt to hot weather, with the ability to perspire, secrete about 2 liters of sweat in an hour."So this person even has to drink 2 liters of water every hour, just to survive," Piantidosi said.

High temperatures and lack of water are the perfect conditions to destroy human organs. Internal temperatures skyrocketed, heart rate increased, blood flow slowed and organs began to stop working. The kidneys 'closed', the heart must work harder to pump blood throughout the body, weakly. Other agencies started to share the same fate, ultimately failed.

Quickly collapsed

In extremely high temperature conditions, it all happens in 1 hour, even less.The brain - one of the most important organs of the body, is also affected by anemia . That's why in hot weather, many people make decisions that are less accurate and serious than life-threatening.

In countries facing hot weather, the government advises people not to go outside for 11 to 16 hours to ensure safety.