Quang Ninh experiences extreme weather contrasts. In the summer, travelers may spend hours:
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On boat decks.
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At the beach.
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At ports and harbors.
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Walking outdoors.
Meanwhile, in Binh Lieu, Yen Tu, or along mountain trails during the cold season, wind + rain + wet clothes can cause the body to lose heat rapidly even if temperatures have not plunged extremely low. The CDC emphasizes that hypothermia can even occur in cool weather above 4°C if a person becomes wet from rain, sweat, or cold water.
Heat Exhaustion
Signs may include:
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Heavy sweating.
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Fatigue.
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Dizziness.
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Headache.
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Nausea.
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Weakness.
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Muscle cramps.
The CDC recommends moving the person to a cool place, loosening their clothing, cooling them with damp cloths or a cool bath, and having them sip water if conscious. If vomiting occurs, symptoms worsen, or they persist, medical evaluation is required.
Heat Stroke Is a Medical Emergency
Danger signs include:
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Very high body temperature.
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Confusion.
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Altered behavior.
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Loss of consciousness.
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Hot skin.
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Rapid heart rate.
Heat stroke requires immediate emergency care. While waiting for help:
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Move the victim away from heat sources.
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Cool rapidly using water or cool towels.
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Do not attempt to give fluids to someone who is drowsy or unconscious.
In Vietnam, call 112 to request emergency assistance.
What About Cold Exposure?
Early signs of hypothermia:
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Shivering.
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Fatigue.
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Clumsiness.
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Confusion.
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Lack of coordination.
More severe cases may show:
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Slurred speech.
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Shivering stops.
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Slow breathing.
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Loss of consciousness.
The CDC recommends:
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Move the person into a warm and dry place.
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Remove wet clothing.
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Warm the center of the body first: chest, neck, head, and groin.
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Offer warm beverages only if the person is fully conscious.
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Do not give alcohol.
Common Mistakes
Drowsy heat stroke victim → forcing them to drink water: risk of choking.
Hypothermia victim → drinking alcohol to warm up: not recommended.
Violent shivering → applying direct extreme heat: risk of burns and improper rewarming.
Prevention
At the beach:
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Drink water regularly.
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Wear a hat.
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Rest in the shade.
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Avoid continuous activity in the sun for long hours.
In highland areas:
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Windproof jacket.
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Insulating layers.
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Raincoat.
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Spare dry clothes and socks.
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Do not continue trekking when wet, cold, and shivering severely.
Quick Checklist
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Sun: Rest before exhaustion sets in.
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Confusion in hot weather = dangerous condition.
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Never give fluids to a drowsy person.
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Cold + shivering + confusion = suspect hypothermia.
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Change out of wet clothes.
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Warm the core of the body.
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Do not use alcohol to "keep warm."
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Severe symptoms → call 112.
