Key points
Learn the warning signs of heat exhaustion and heat stroke, and what to do safely when headache, nausea, dizziness, weakness, thirst, and heavy sweating occur in extreme heat.
Hello, I am Dr. Hong Myeong-hwi, Chief Physician at HyungInJae Korean Medicine Clinic Gangnam.
During prolonged extreme heat, brief dizziness or weakness can be dismissed as ordinary summer fatigue. However, headache, nausea, intense thirst, and heavy sweating may be warning signs of heat illness. If confusion, altered consciousness, or seizures occur, emergency action comes before any discussion of recovery care.
Headache, dizziness, and heavy sweating may signal heat exhaustion
After spending time in a hot environment, headache, nausea, dizziness, weakness, intense thirst, and heavy sweating can suggest heat exhaustion. Stop activity immediately and move to shade or an air-conditioned place. Loosen clothing and cool the body with wet towels or cold packs while monitoring the person. Persistent or worsening symptoms require medical evaluation.
Confusion and seizures are emergency signs of heat stroke
Confused speech or behavior, altered mental status, seizures, loss of consciousness, and a very high body temperature are emergency warning signs of possible heat stroke. Sweating does not rule it out. Call emergency medical services immediately, move the person to a cool place, and begin rapid cooling while help is on the way. Do not leave the person alone. This is not a situation to address first with a Korean medicine consultation.
Check alertness and swallowing before offering fluids
Offer small amounts of water or an electrolyte drink only when the person is fully alert and can swallow safely. Do not force fluids if vomiting continues, consciousness is impaired, or swallowing is difficult, because aspiration can occur. Even if rest brings temporary improvement, avoid returning to strenuous activity in the heat that day and watch for persistent dizziness, palpitations, or reduced urination.
After urgent risks are excluded, review lingering fatigue and daily rhythm
Fatigue, low appetite, poor sleep, or digestive discomfort may linger after acute symptoms settle. At HyungInJae Korean Medicine Clinic Gangnam, we discuss hydration, meals, sleep, and activity patterns only after emergency risks have been excluded. This consultation does not replace the diagnosis or emergency treatment of heat illness, and recovery time varies by individual.
This article is general health information and does not replace a personal diagnosis. If symptoms persist or worsen, please see a doctor.
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