Sunstroke and heatstroke: symptoms and first aid algorithm

Heatstroke and sunstroke are life-threatening conditions that require emergency body cooling and immediate medical attention for severe symptoms. While sunstroke results from direct exposure of the head to the sun's rays, heatstroke can develop even in a closed, stuffy room or during physical exertion in heavy clothing.

We explain how to recognise the symptoms and provide first aid for sunstroke and heatstroke.



Symptoms of Overheating

The signs of the condition depend on its severity. Key symptoms include:

High body temperature (up to 40°C and above).

Reddening of the skin (primarily the face in case of sunstroke).

Dry skin or, conversely, clammy, profuse sweating.

Severe headache, throbbing in the temples, and ringing in the ears.

Nausea and vomiting.

Rapid pulse and shallow, rapid breathing.

Dizziness, darkening vision, and loss of consciousness.