We often think of summer as just uncomfortable sweating, dehydration, and fatigue. But extreme heat can sometimes push the body beyond its ability to regulate temperature, leading to a life-threatening condition called heat stroke.
Heat stroke is the most severe form of heat-related illness. It occurs when the body’s temperature regulation system fails, causing the core body temperature to rise above 40°C (104°F). At this stage, the body can no longer cool itself through sweating, and vital organs such as the brain, heart, and kidneys may begin to suffer damage.
Heat stroke commonly occurs in situations such as:
- Prolonged exposure to high temperatures
- Strenuous physical activity in hot weather
- Dehydration
- Poor ventilation or staying in closed hot environments
- Wearing heavy or tight clothing
Heat stroke often develops after earlier heat-related illnesses like heat cramps or heat exhaustion. Common symptoms include:
- Hot, dry skin (sometimes sweating may still occur)
- Severe headache
- Dizziness or confusion
- Rapid heartbeat
- Nausea or vomiting
- Seizures
- Loss of consciousness
- Altered mental status (confusion or unusual behavior)
What to Do If Someone Is Having Heat Stroke?
It is a medical emergency and requires immediate action. If someone near you shows signs of heat stroke:
- Call emergency medical help immediately.
- Move the person to a cool or shaded area.
- Remove excess clothing.
- Cool the body quickly:
- Apply cold packs to the neck, armpits, and groin
- Use cool water or wet cloths on the skin
- Fan the person if possible
- If the person is conscious, give small sips of cool water (avoid very cold ice water).
Precautions to Prevent Heat Stroke:
- Stay well hydrated throughout the day
- Avoid direct sunlight during peak hours (11 AM – 4 PM)
- Wear light-colored, loose, breathable clothing
- Take frequent breaks if working outdoors
- Never leave children or pets in parked vehicles
- Gradually acclimatize to hot environments if exercising
Children, elderly people, people with conditions like cardiovascular disease or obesity, and those taking certain medications should be extra cautious in extreme heat. It is a serious medical emergency that can damage vital organs and even become fatal if not treated quickly.
MBH/PS