Body Secrets Under Heat: When Core Temperature Soars High

Body Secrets Under Heat: When Core Temperature Soars High

In a hot climate like Thailand, "core temperature," or Core Temperature, is an even more important indicator than skin temperature, because it determines whether the body will continue to function effectively or go into crisis.

What is Core Temperature?

Normally, the human body has a constant core temperature of about 37 degrees, with a hypothalamus section of the brain acting as a thermostat regulating heat. If this temperature rises above 38 degrees, the body begins to enter Hyperthermia, and if it reaches 40 degrees, it is considered a life-threatening level.

Why is Core Temperature skyrocketing?

The main cause is due to the lost heat balance (Heat Balance), coming from 2 main factors:

Metabolic Heat: Heat generated by internal metabolic processes, especially while exercising hard, muscles produce enormous heat.

Environmental Heat: External factors such as air temperature, relative humidity, and heat radiation from sunlight

Effects on physical fitness (Performances)

As the core temperature rises, the body undergoes a chain reaction that negatively affects exercise.

1.Cardiovascular Drift: Blood needs to be sent to the skin to cool more, causing blood to drop back into the heart, so the heart needs to beat faster, even at the same speed.

2.Glycogen Depletion: The body will switch to more and faster carbohydrate energy, causing muscle fatigue.

3.Critical Temperature Theory: The theory that the brain will have an "intersection" when the core temperature reaches a certain level (about 39.5-40 degrees), the nervous system will command to reduce the exercise concentration to prevent damage to the organ.

Coping and prevention strategies

To be able to safely exercise or work in thermal conditions:

- Heat Acclimatization: Training the body to get used to heat by exercising in hot weather 7-14 days in advance to adjust the sweat secretion system and maintain mineral salt balance.

- Pre-cooling & Mid-cooling: Lowering the temperature before and during activities such as ice slurry or using a cold cloth to compress the pulse.

- Technical Apparel: Selecting to wear clothes made of technical materials, such as synthetic fibers with special breathable structures, or using seamless (Seamless) weaving technology to reduce abrasion and help sweat evaporate faster, which directly affects the reduction of skin and core temperature.

- Hydration Strategy: It should not drink just water alone, but should be provided with sufficient sodium and electrolytes to assist in absorbing water into cells.

Core Temperature Soaring is not a thing to ignore for those who love exercise. Understanding body mechanics and equipment and nutrition preparedness will help you safely transcend your limits even in the face of hot weather.

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