Inside a Heatwave: Can the Human Body Adapt to Extreme Temperatures?
Initial Shock to the System: When exposed to extreme heat, the human body initially struggles to cope.
This helps cool the body down through evaporation but can also lead to dehydration if fluids aren’t replaced.
Heart Works Harder: To regulate internal temperature, the heart pumps more blood to the skin.
Acclimatization Begins: Over time (usually 7–14 days), the body starts to adjust. This process is called heat acclimatization.
Better Blood Flow: The body improves blood flow to the skin, which enhances heat release and reduces the risk of overheating.
Lower Core Temperature: With acclimatization, the body starts to maintain a slightly lower core temperature.
Improved Hydration Efficiency: The kidneys retain more water, and the body conserves essential salts, helping maintain hydration more effectively.
Age & Health Matter: Young, healthy people adapt more easily. Older adults, children, and those with health issues often face higher risks during heatwaves.