Irish people battling soaring temperatures are being warned that some of the most popular tricks for beating the heat could actually make things worse.

With parts of Europe sizzling in temperatures approaching 40 degrees in London and across the continent, millions of us are reaching for fans, cold showers, and sleepless-night survival hacks in a desperate bid to stay cool.

But experts say one common mistake could leave people feeling even more uncomfortable during the scorching weather.

Many sun-baked Irish people are instinctively cranking their showers to ice-cold in the hope of cooling down fast.

However, specialists warn that shocking the body with freezing water can trigger a natural response that causes it to hold onto heat rather than release it.

Instead, cooler or lukewarm showers are being recommended as a more effective way to lower body temperature.

Letting water evaporate naturally from the skin afterward can also help create a lasting cooling effect.

And there’s more bad news for those ditching their PJs during the heatwave.

While sleeping naked may seem like the obvious solution during sticky summer nights, experts say lightweight cotton clothing could actually help keep you cooler.

Loose-fitting nightwear can absorb sweat and help it evaporate more efficiently, making it easier for the body to regulate its temperature while you sleep.

The warning comes as health officials urge people to take extra care during the hot spell, particularly the elderly, young children, and those with underlying health conditions.

Doctors are also reminding the public to watch for signs of heat exhaustion, which can develop quickly during periods of extreme heat.

Symptoms include dizziness, headaches, nausea, excessive sweating, muscle cramps, intense thirst, and unusually high body temperatures.

Anyone suffering from heat exhaustion should move to a cool place immediately, drink fluids, and seek medical help if symptoms worsen or fail to improve.

With the mercury continuing to climb, experts say staying cool is vital, but doing it the right way could make all the difference.