emergency

Heatstroke

熱中症 (necchūshō)

Heatstroke is a life-threatening condition in which the body's temperature regulation fails, causing core body temperature to rise dangerously. Japan's hot and humid summers make it extremely common. Symptoms include very high body temperature, altered mental state, and absence of sweating. Move the person immediately to shade or air-conditioning, apply ice packs to the neck, armpits, and groin, and call 119. Air-conditioned train stations and convenience stores serve as emergency cooling refuges.

Japan's Ministry of the Environment issues real-time heat stroke risk alerts using the WBGT index, accessible via public apps and displayed on outdoor heat-warning signboards during summer.

In 9 languages

Language	Term
English	Heatstroke
Japanese (日本語)	熱中症
Chinese (中文)	中暑
Korean (한국어)	열사병
Portuguese	Insolação
Spanish	Golpe de calor
Filipino	Heat stroke
Thai	โรคลมแดด
Vietnamese	Say nắng
Romanization	necchūshō

Related terms

• Ambulance 救急車
• Emergency Room 救急外来
• Dehydration 脱水
• Unconsciousness 意識不明

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