Arab weather - the basic human body temperature ranges on average from (36.5) - (37.5) degrees Celsius, where God Almighty deposited in the human body an internal thermostat that works to maintain body temperature within the ideal range, but the human body may be exposed to conditions It raises or lowers its temperature a lot, so will the human body survive then!
How long can you swim in a cold lake in winter without freezing to death? What happens if the sauna door is locked and I stay in a very hot place? What is the highest and lowest temperature the human body can record and what happens next?
The maximum temperature that the human body can survive is (42.3 degrees Celsius). After that temperature, the nature of proteins in the body changes and the brain is irreparably damaged.
Cold water draws body heat If a person is in a cold lake of 4 ° C, then a person can survive for a maximum of 30 minutes. The reason: a sudden increase in the concentration of stress hormones in the blood to stimulate heat production. Muscles start shivering quickly to produce heat through the muscles, but in cold water, shivering causes body heat to drain faster. The muscular system gets tired very quickly and the body becomes very cold.
As soon as the body temperature drops below 32 ° C, the vibrations and energy reserves stop. Muscle stiffness and cold shock nerve endings. This is the reason for not feeling cold and sore afterwards.
The brain reduces its performance and movements are almost impossible, enzymatic reactions and transport mechanisms in cells are slow, so important substances are not produced or are produced very little. At a core temperature of 29.5 degrees Celsius most people would die, as the heart beats only two to three times per minute, and the pulse and respiration are barely measurable. Once the temperature is below 20°C, death is almost certain.
Even warming up too quickly can be dangerous: in cold water the blood vessels in the skin and in the extremities dilate and blood pressure drops rapidly, so there is a risk of a circulatory collapse. By the way: Even if a frozen person returns to a warm environment, his body temperature continues to drop for another 15 minutes. During the warm-up or movement of the patient, if there is a significant difference between the extremities and inside the body, the temperature of the extremities rises - to the detriment of the core temperature.