Let’s be honest: You’re probably feeling a mix of uncomfortable warmth and the risk of spontaneous combustion. And we understand—temperatures in the UK are expected to soar this week, possibly hitting a staggering 40°C.
This heat can create an unbearable working environment. According to Professor Mike Tipton, who completed his PhD at the Institute of Extreme Environments, “We are essentially tropical animals designed to exist in a climate of around 26 degrees Celsius, not to perform physical tasks in protective gear or wear suits in such sweltering temperatures.”
So for you workers sweating it out in office attire, how can you stay cool? You likely know the basics: drink ample water, stay shaded, and close the curtains to block out the heat.
However, there are several other simple, science-backed strategies to help you beat the heat. Here are four effective methods.
1. Cool Your Hands First, Not Your Face
When feeling hot, your instinct might be to fan your face. But Tipton emphasizes that this isn’t the fastest method for reducing body temperature.
“While the breeze on your face feels comforting, it doesn’t actually remove heat from your body,” he explains.
Instead, Tipton recommends soaking your hands in cold water for 15 to 20 minutes. “Hands have a larger surface area relative to their mass, so they can efficiently release heat when blood flow increases,” he states.
This method might not just feel refreshing; it cools you down significantly faster than an ice bath. It’s essential to differentiate between what feels cool and what actually reduces your body temperature.
2. Avoid Cold Showers
While a cold shower might sound tempting on a hot summer day, it can actually slow your cooling process.
“Submerging too much of your body in cold water restricts blood flow to the surface, limiting your body’s natural cooling mechanisms,” says Tipton. Instead, opt for a lukewarm shower to promote effective heat dissipation.
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3. Opt for Hot Drinks
Surprisingly, drinking hot liquids can cool your body more effectively than cold ones.
“Activating bodily systems like sweating and directing blood to the skin is key for cooling down,” Tipton explains. “That’s why spicy foods can make you feel cooler.” While staying hydrated is crucial, remember that a cold drink won’t significantly lower your internal temperature.
However, avoid caffeine or alcohol, as they can increase your metabolic rate and lead to faster dehydration. Instead, consider a refreshing herbal tea.
4. Enhance Your Sweat with a Breeze
While it might seem simplistic, using a fan effectively can make a substantial difference. A fan promotes sweat evaporation, crucial for cooling your body.
In extreme heatwaves, sweating becomes critical. “When temperatures soar around 35 degrees, sweating is your primary method for cooling yourself,” says Tipton.
If possible, use a non-electric fan or open windows to encourage airflow. Dependence on air conditioning can exacerbate climate change, making natural methods more essential.
About Our Expert
Mike Tipton is a Professor of Human and Applied Physiology at the University of Portsmouth. With 40 years of experience, he specializes in thermoregulation, environmental physiology, and occupational physiology, publishing over 750 scientific papers and reports. He also consults in survival and thermal medicine for the Royal Air Force and UKSport.
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This article was originally published in September 2023.
Source: www.sciencefocus.com


