Record-breaking heatwaves across the Northern Hemisphere have again sparked concerns about the danger such blistering temperatures pose to people's health, particularly children and the elderly.
Such sustained heatwaves can put human bodies under extreme pressure, sometimes leading to dehydration, heatstroke and death.
Research recently found that more than 61,000 people died due to the heat in Europe last summer — and 2023 is shaping up to be even hotter.
How heatwaves affect the body and health
As temperatures rise, the body fights to maintain its normal temperature around 37 degrees Celsius.
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