HPA Warns of Rising Temperatures, Urges Public to Recognize Signs of Heat Illness

The Health Protection Agency (HPA) has urged the public to take precautions as temperatures rise, warning that prolonged exposure to high heat can cause dehydration, heat exhaustion and potentially life-threatening heat stroke.

In a post on X, HPA highlighted a range of short-term health effects associated with excessive heat, including eye irritation, fatigue, weakness, dehydration, muscle cramps, headaches, dizziness and heat rash.

The agency advised people to seek emergency medical care if they experience serious heat-related symptoms such as heat stroke, severe heat exhaustion, fainting or confusion. People with existing heat-related, lung or kidney conditions should also seek medical attention if their symptoms worsen during periods of high heat.

HPA identified several warning signs of heat stroke, including confusion or loss of consciousness, a body temperature of 40°C or higher, hot and red skin that may be either dry or damp, and a rapid pulse.

The agency also provided first-aid guidance for people experiencing heat exhaustion. The person should be moved to a shaded or cooler location, clothing should be loosened, cool water should be applied to the body and drinking water should be offered if the person is conscious.

Heat stroke, however, requires urgent medical attention. HPA advised calling emergency services immediately and moving the affected person to a shaded or air-conditioned area. Unnecessary clothing should be removed or loosened, while cold, wet clothing or towels should be applied to help lower body temperature.

Unlike heat exhaustion, HPA advised not giving anything by mouth to a person experiencing heat stroke, particularly if they are confused or unconscious. Their condition should be monitored closely for signs of improvement or deterioration while emergency assistance is sought.

The warning comes as high temperatures become an increasing public-health concern. Excessive heat places additional strain on the body’s ability to regulate its temperature, with dehydration and prolonged exposure increasing the risk of more severe illness.

Heat-related illness can affect anyone, but the risk is generally greater for people who spend extended periods outdoors, undertake strenuous physical activity in hot conditions, or have difficulty regulating body temperature.

HPA’s advisory underscores the importance of recognizing early symptoms and taking action before heat-related illness becomes severe, particularly during periods of persistently high temperatures.