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The UK is experiencing extreme temperatures, with red weather warnings issued across several regions as a record-breaking heatwave continues. Health experts are urging people to take extra precautions as prolonged exposure to high temperatures can lead to serious heat-related illnesses, including heat exhaustion and heatstroke.
While many people enjoy warm weather, excessive heat can quickly become dangerous, especially for older adults, young children, people with chronic health conditions, and those working or exercising outdoors. Knowing the symptoms of heat exhaustion and heatstroke could help prevent serious health complications and even save lives.
Heat exhaustion occurs when the body becomes too hot and struggles to regulate its temperature. It is usually caused by spending long periods in hot weather, physical activity in high temperatures, or dehydration.
Although heat exhaustion is not usually life threatening when treated quickly, it can develop into heatstroke if ignored.
Look out for these warning signs:
If someone is experiencing these symptoms, they should move to a cooler place immediately and begin cooling down.
Prompt treatment can prevent heat exhaustion from becoming more serious.
Here are the recommended first aid steps:
Most people begin to recover within 30 minutes if they receive the right care.
If symptoms do not improve or worsen, seek medical advice immediately.
Heatstroke is a severe medical emergency that happens when the body's temperature rises to dangerous levels and it can no longer cool itself effectively.
Unlike heat exhaustion, heatstroke requires urgent medical treatment because it can cause permanent organ damage or even become fatal if left untreated.
Recognising the symptoms early is essential.
Signs of heatstroke include:
If you suspect someone has heatstroke, call emergency medical services immediately.
While waiting for help, move the person to a cooler location, remove excess clothing, and cool their body using wet towels, cold water, or ice packs placed around the neck, armpits, and groin.
Do not force someone who is unconscious to drink fluids.
Although anyone can suffer from heat-related illnesses, some groups face a much higher risk.
These include:
Extra care should be taken to keep these groups cool and well hydrated during periods of extreme heat.
Preventing heat-related illness is often easier than treating it.
Follow these simple safety tips during hot weather:
Drink plenty of water throughout the day, even if you do not feel thirsty. Limit alcohol and excessive caffeine, as they can contribute to dehydration.
Try to stay indoors between 11 am and 3 pm when temperatures are at their highest.
Choose lightweight, loose-fitting, and light coloured clothing that allows heat to escape from the body.
Close curtains or blinds during the hottest part of the day and open windows when temperatures drop in the evening.
Avoid strenuous exercise during the hottest hours. If exercise is necessary, do it early in the morning or later in the evening.
Temperatures inside parked cars can rise rapidly, even if the windows are slightly open. This can quickly become life threatening.
A red weather warning is the highest level of heat alert and indicates that extreme temperatures pose a significant risk to health and public safety.
During these warnings, authorities advise people to:
Ignoring heat warnings can significantly increase the risk of heat exhaustion and heatstroke.
Call emergency services immediately if someone:
Quick medical intervention can greatly improve recovery and reduce the risk of serious complications.
Extreme heat is more than just uncomfortable. It can become dangerous within a short period if proper precautions are not taken. Understanding the difference between heat exhaustion and heatstroke is essential, especially during periods of record high temperatures and official heat warnings.
Staying hydrated, avoiding excessive sun exposure, and recognising the early warning signs can help protect you, your family, and those most vulnerable during a heatwave.
If you or someone around you develops symptoms of heatstroke, seek emergency medical assistance immediately. Acting quickly could save a life.
Information in this article is based on guidance from the UK National Health Service (NHS), the UK Health Security Agency (UKHSA), and the Met Office regarding heat-related illnesses and extreme weather safety.
This article is for informational and educational purposes only and should not be considered medical advice. Always seek guidance from a qualified healthcare professional if you have concerns about heat-related illness or any medical condition. In a medical emergency, contact your local emergency services immediately.