Preventing and responding to heatstroke
熱中症の予防と対応
Learn how to protect your body on a hot site and what to do when you feel unwell.
Key points
Heatstroke (necchusho) is an illness that happens when, because of heat, the water and salt in the body go down or the body becomes unable to lower its temperature. Symptoms such as dizziness, muscle pain, heavy sweating, headache, nausea, and a tired, heavy body appear.
熱中症は、暑さで体の水分や塩分がへったり、体温を下げられなくなったりして起こる病気です。めまい、筋肉の痛み、大量の汗、頭痛、吐き気、体のだるさなどが出ます。
Even if you are not thirsty, take water and salt before and after work and during work. Take breaks in a cool place such as the shade.
のどがかわいていなくても、作業の前と後、作業中に、水分と塩分をとります。休憩は、日陰などのすずしい場所でとります。
From June 1, 2025, the company must decide who to report heatstroke to and the steps for responding, and inform the people doing the work. According to the national government notice, this applies to work in a place with a heat index (WBGT) of 28°C or higher or an air temperature of 31°C or higher, that is expected to continue for 1 hour or more or to be more than 4 hours in one day. Before work, check who you report to.
2025年6月1日から、会社は熱中症の報告先と対応の手順を決めて、作業をする人に知らせなければなりません。国の通達では、対象は、暑さ指数（WBGT）28度以上または気温31度以上の場所で、1時間以上続く、または1日4時間をこえる見込みの作業です。作業の前に、だれに報告するかを確かめます。
If you feel that something is wrong with your body, do not put up with it. Stop work at once and report. Also report at once when a co-worker does not seem right.
自分の体がおかしいと感じたら、がまんしないで、すぐに作業をやめて報告します。仲間の様子がおかしいときも、すぐに報告します。
Do not leave a person who may have heatstroke alone. Cool their body in a cool place. If their answers are strange or they seem dazed, call 119 at once and ask for an ambulance.
熱中症かもしれない人を、一人にしません。すずしい場所で体を冷やします。返事がおかしい、ぼんやりしているときは、すぐに119番に電話して救急車を呼びます。
Check your understanding (4 questions)
Choose an answer. The correct answer and an explanation appear right away.
Question 1 / 4
Which is correct about water and salt on a hot day?
暑い日の水分と塩分について、正しいものはどれですか。
This material is to help carry out and record training. The rules and procedures of your workplace always come first.
The Japanese text is the official text. The translation is a machine translation and has not yet been checked by a native speaker. If you feel the meaning is different, look at the Japanese text and ask someone at your workplace.
この教材は、研修の実施と記録を助けるためのものです。職場の決まりや手順が、いつも優先です。 日本語の文が正式です。翻訳は機械翻訳で、母語を話す人の確認はまだ受けていません。意味がちがうと感じたら、日本語の文を見て、職場の人に聞いてください。
Sources used
Read in another language
この分野の利用状況（直近30日・日別）
読み込み中です。