As Britain braces for another scorching heatwave, health experts are issuing a stark warning: your trusty fan could be putting your life at risk. While many reach for electric fans to stay cool during sweltering temperatures, new research suggests they may do more harm than good in extreme heat.
The Hidden Dangers of Fans in Heatwaves
Medical professionals warn that fans can actually accelerate heat-related illnesses when temperatures climb above 35°C. Rather than cooling the body, they simply circulate hot air, potentially leading to dangerous increases in core body temperature.
How Fans Can Trigger Heart Attacks
Cardiologists explain the alarming mechanism:
- Fans cause excessive sweating, leading to rapid dehydration
- Dehydration thickens blood, forcing the heart to work harder
- This extra strain can trigger cardiac events in vulnerable individuals
Who's Most at Risk?
Certain groups should be particularly cautious about fan use during heatwaves:
- Elderly individuals (especially those over 75)
- People with pre-existing heart conditions
- Those taking certain medications (including diuretics and beta-blockers)
- Individuals with mobility issues or dementia
Safer Alternatives to Beat the Heat
Instead of relying solely on fans, experts recommend:
- Keeping hydrated with water and electrolyte drinks
- Using damp cloths on pulse points (wrists, neck)
- Closing curtains during the day and opening windows at night
- Visiting air-conditioned public spaces during peak heat hours
The UK Health Security Agency advises checking on vulnerable neighbours and relatives during extreme heat periods, as heat-related deaths are often preventable with proper precautions.
