What to do if you think someone has heat exhaustion or heatstroke

• Heat exhaustion presents with dizziness, nausea, headache and heavy sweating; move affected individuals to a cool place, lay them flat with legs elevated, and give them water to drink
• Heatstroke is a medical emergency characterised by high temperature without sweating, confusion and loss of consciousness; call 999 immediately and cool the person while awaiting ambulance arrival
• Both conditions require prompt recognition and cooling measures, with heatstroke requiring emergency admission to prevent serious complications including organ damage and death

Know the signs and what to do if someone is unwell in hot weather.

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