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Composed by Anuchit Thepsee JIU Wellness Co., Ltd
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Thailand has a tropical climate with high temperatures throughout the year. During the hot season (March–May), temperatures in many areas can exceed 35–40°C, and combined with high humidity, the body loses more water through sweat. This raises an important question: Can the summer heat in Thailand lead to dehydration, and how dangerous can it be?
Why Hot Weather Causes Dehydration
Dehydration occurs when the body loses more fluids than it takes in. In hot environments, the body regulates its temperature by sweating, which increases fluid loss.
อากาศร้อนทำให้ร่างกายขาดน้ำได้อย่างไร
Key risk factors include:
- Temperatures above 35°C
- High humidity
- Outdoor work or intense exercise
- Insufficient water intake
- Elderly individuals, children, or people with chronic diseases
Sweat does not only remove water but also electrolytes such as sodium and potassium, which are essential for nerve, muscle, and heart function.
Health Risks of Dehydration
Dehydration can range from mild to severe.
Early symptoms
- Excessive thirst
- Dry mouth
- Dark or reduced urine
- Fatigue and dizziness
Severe symptoms
- Rapid heartbeat
- Low blood pressure
- Confusion or fainting
Severe dehydration can lead to heat-related illnesses such as:
- Heat Exhaustion
- Heat Stroke
Heat Stroke is a medical emergency. Body temperature may exceed 40°C, potentially causing brain damage, organ failure, and even death if not treated promptly.
Can Severe Dehydration Be Fatal?
In extreme cases, dehydration may lead to heat-related illnesses such as:
Heat Exhaustion and Heat Stroke
Heat stroke is considered a medical emergency, where body temperature may exceed 40°C, potentially causing: Death if untreated, brain damage, and organ failure
To Prevent Dehydration in Summer
Simple ways to stay hydrated include:
- Drink 1.5–2.5 liters of water daily
- Avoid prolonged exposure to direct sunlight
- Wear breathable clothing
- Eat water-rich foods like watermelon, oranges, and cucumbers
- Limit excessive caffeine and alcohol intake
When to Seek Medical Advice
Consult a doctor or pharmacist if you experience:
- Severe dizziness
- Nausea or vomiting
- Very little urination
- Extremely high body temperature
- Confusion or loss of consciousness
Recognizing symptoms early and staying well hydrated are essential for maintaining health during Thailand’s hot season.