Context:
Amid severe heatwave conditions across Europe, France has temporarily restricted alcohol consumption at certain public events in heat-alert regions. The measure aims to reduce heat-related illnesses and deaths by minimizing factors that increase dehydration and impair the body’s ability to cope with extreme temperatures.

Explanation:
- A heatwave is a prolonged period of abnormally high temperatures;
- The human body maintains temperature through thermoregulation, involving sweating, blood circulation, and hormonal control.
- Alcohol acts as a diuretic, increasing urine output and promoting dehydration, which is especially dangerous during extreme heat.
- Heat exposure can lead to heat cramps, heat exhaustion, heat syncope and heat stroke, the latter being a life-threatening medical emergency.
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Heatwave Health Risks and the Challenge of Alcohol Use