Heat Stroke: Signs, Symptoms, Consequences & Prevention
In 2026, a total of 15 heat-related cases were reported, including one tragic death involving a child.
Therefore, don’t take it lightly if your child complains of a headache after playing in the park. The child’s face is red, hands are cold, dizzy and wants to vomit. This may be a sign that your child is suffering from heat stroke, which is very life-threatening.
MET Malaysia had previously issued hot weather status level 1 (caution) with temperatures increasing to 35-37°C, especially in the northern region of the peninsula. Always monitor FB Met Malaysia to see the latest weather situation in Malaysia.
Follow the next sharing about heat stroke in this article.
What is Heat Stroke?
If exposed to extreme hot weather, you can experience ‘heat exhaustion’ (heat exhaustion) or worse, ‘heat attack’ (heat stroke).
Heat stroke is a serious condition resulting from exposure to very hot environmental conditions that cause the body to be unable to stabilize body temperature and occurs when body temperature rises rapidly above 40°C (degrees Celsius) or more.
Heat stroke can occur suddenly or gradually.
The incidence rate of heatstroke varies depending on geographical factors, weather and the activities of local residents. The risk of heat stroke is high when the environmental temperature is above 39.2°C.
In the Risk Group
The risk groups for experiencing heat stroke are as follows:
- Babies and children
- Chronic patients
- Golden citizen
- Individuals are active under heat
Signs/Symptoms of Heat Stroke
The public needs to know the signs and symptoms of heat stroke so that action can be taken immediately.
Among the signs that someone is suffering from heat stroke are:
- Prolonged dizziness
- Thirst
- The heart rate becomes fast and the patient will feel a pounding heart (normal heart rate: 60-100/minute)
- Rapid and shallow breathing (normal breathing rate: 12-20/minute)
- The body feels hot and dry
- Headache, dizziness and dizziness
- Feeling nauseous
- Sudden increase in body temperature to 40°C or more (normal body temperature: 36.5°C to 37.5°C)
- Decreased blood pressure (normal blood pressure: 120-140/60-80 mmHg)
- Unconsciousness, fainting or seizure.
MUST KNOW: EARLY SIGNS OF HEAT STROKE
Preventive measure
The public also needs to know several important preventive steps to avoid heat stroke, namely:
- Drink enough water (≥8 glasses a day)
- (Physical activity) Drink 200-250ml every 15-20 minutes
- Avoid outdoor activities in hot weather
- Choose morning or evening to exercise
- Grow in a shady/air-conditioned place
- Wear bright, light & loose clothing
- Use an umbrella/hat when leaving the house
- Shower or moisturize frequently
- Reduce caffeinated/sweet drinks
- Add more juicy fruit
- Avoid doing physical activity when tired, hungry or excessively thirsty,
- Practicing a healthy and balanced diet, wearing loose and light clothing and heat protection such as a hat or umbrella,
- Do not leave anyone in a vehicle parked in the hot sun
- Ensure adequate ventilation or air conditioning if inside a house or building
He also advised the public to immediately seek treatment at the nearest hospital or clinic if they have early symptoms of heat illness.
Maintenance Required
On-scene treatment:
- Move the victim from extreme sunlight to a covered or cool place.
- Cool the victim with a damp cloth or splash with cold water.
- Provide fresh air, direct a fan directly or a fan at the victim using a newspaper.
- If the victim is conscious, give him a cool, fresh drink.
- Get medical help via line 999.
Hospital treatment:
- The victim will be checked for pulse, blood pressure, respiratory rate and level of consciousness.
- If the victim experiences shock, special treatment will be given.
- Blood tests and other related supporting examinations will be carried out if necessary.
Dangers/Complications of Heat Stroke
Heat stroke should not be taken lightly as it can cause serious complications.
Based on the article written by Bouchama et al. (2022), the short-term impact of sudden exposure to hot weather can result in injury to body cells, inflammation, blood clots and bleeding in several important organs.
Heat stroke victims can experience long-term effects such as problems with the nerves, cardiovascular system, and risk of death.
Always get the latest weather information from METMalaysia and related health alerts from the Malaysian Ministry of Health.
Reduce or avoid doing outdoor activities or exercising in hot weather.
Frequently Asked Questions
Heat stroke is a serious condition resulting from exposure to a very hot environment which causes the body to be unable to stabilize body temperature and occurs when body temperature rises rapidly above 40°C (degrees Celsius) or more.
– Babies and children
– Chronic patients
– Golden citizen
– Individuals are active under heat
The short-term impact of sudden exposure to hot weather can result in injury to body cells, inflammation, blood clots, and bleeding in several vital organs. Long-term effects include neurological problems, cardiovascular system problems, and risk of death.
– Prolonged dizziness
– Thirst
– The heart rate becomes fast and the patient will feel a pounding heart (normal heart rate: 60-100/minute)
– Rapid and shallow breathing (normal breathing rate: 12-20/minute)
– The body feels hot and dry
– Headache, dizziness and dizziness
– Feeling nauseous
– Sudden increase in body temperature to 40°C or more (normal body temperature: 36.5°C to 37.5°C)
– Blood pressure drops (normal blood pressure: 120-140/60-80 mmHg)
– Unconsciousness, fainting or seizure.
– Drink enough water (≥8 glasses a day)
– (Physical activity) Drink 200-250ml every 15-20 minutes
– Avoid outdoor activities in hot weather
– Choose morning or evening to exercise
– Do more in the shade/air-conditioned
– Wear bright, light & loose clothing
– Use an umbrella/hat when leaving the house
– Take frequent showers or moisturize your body
– Reduce caffeinated/sweet drinks
– Eat more juicy fruit
– Avoid physical activity when tired, hungry or excessively thirsty,
– Practicing a healthy and balanced diet, wearing loose and light clothing and heat protection such as a hat or umbrella,
– Do not leave anyone in a vehicle parked under the hot sun
– Ensure adequate ventilation or air conditioning if inside a house or building
Further Information
For further information about Heat Stroke, please visit the website
Also read: 5 Stages of Kidney Disease & Silent Signs You Need to Know
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