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Heatwave Danger: Fans Can Make You Hotter Above 40°C
1 May
Summary
- Electric fans may worsen heat exposure when temperatures exceed 40°C.
- Fans can increase dehydration and cardiovascular strain in extreme heat.
- Elderly, children, and those with chronic conditions are most vulnerable.
As India grapples with severe heatwaves, a critical warning from the World Health Organization (WHO) highlights that electric fans can become detrimental when temperatures rise above 40°C. Instead of providing cooling, fans may contribute to heating the body under such extreme conditions.
Dr. Rakesh Pandit explains that fans lose their cooling effect when ambient air exceeds skin temperature, potentially accelerating dehydration and straining the cardiovascular system. This can lead to heat exhaustion or heatstroke, with symptoms ranging from dizziness to confusion.
To stay safe indoors, it's advised to remain in the coolest room, keep windows shut during the day, and open them only after sunset. Dr. Pandit emphasizes the importance of hydration, wearing loose natural fibers, and avoiding heavy meals and strenuous exercise.
Certain groups, including the elderly, young children, outdoor workers, and individuals with chronic health issues, are particularly vulnerable to heat-related illnesses. Prompt recognition of symptoms like extreme fatigue, headache, or confusion is vital, with disorientation or cessation of sweating requiring immediate medical attention.
