Tips for preventing heat stroke and first aid in case of heatstroke


English セルフケア・対処 熱中症

Heat stroke can happen inside, as well as outside!

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Heat stroke is a condition caused by your body overheating, usually as a result of prolonged exposure to, or physical exertion in high temperatures. This is the most serious form of heat injury or heat stroke and it can occur if your body temperature rises to 40° C or higher. The condition mostly occurs in summer. However, if you avoid heat and hydrate yourself sufficiently, you can prevent totally heat stroke.
Heat stroke requires emergency treatment. Untreated heat stroke can quickly damage your brain, heart, kidneys and muscles. The damage worsens the longer treatment is delayed, increasing your risk of serious complications or death.
Here NHK will provide you with a summary on its prevention and strategies which could be helpful.

Prevention of Heat Stroke. (Case of a person being inside)

Avoid the direct sunlight.

When sunlight strikes a room directly, the temperature rises. On an extremely hot day, we recommend you to install some bamboo blinds or stores. Besides, it's quite efficient to spray some water on spots where the sun hits the floor.

Use an air-conditioner and a fan.

Do not hesitate to use the air-conditioner and the fan on an extreme hot day to reduce the temperature and the humidity. Do not rely on your feelings but on a thermometer and a hygrometer.

Hydrate yourself frequently.

When you are dehydrated, you don't feel thirsty. It's important to drink regularly. A cold drink is more easily absorbed by the body and cools it as well. It is important to take in salt when you sweat a lot. This salt supply can be get by eating some Japanese crackers or some snacks.

Prevention of Heat Stroke. (while being outdoors)

Check the weather forecast and the danger of having a heat stroke before going out.

Before going out, we recommend you to confirm the weather forecast to check the weather, the temperature, the risk of having a heat stroke and avoid going out during the hottest time of the day.

Use a parasol or wear a hat.

Try to not be exposed to direct sunlight on your skin. Use a parasol or wear a hat.

Check frequently a child.

As the child's head is lower than the adult's, the reflection from the asphalt is stronger. This causes a higher temperature exposure. It's important to check the child's behavior frequently.

Rest regularly.

Rest in a shaded area regularly. While resting, it's better to remove the hat to encourage the sweat's evaporation.

Water and salt intakes are necessary when you sweat.

Water and salt intakes are recommended by rehydration solution or a sports beverage.

First, confirm if the person is conscious! First aid in case of heatstroke.

During summer, when someone feels uneasy on a very hot day, we first think about a heat stroke. Even inside, if it's very hot, there is a risk to have a heat stroke. As the emergency treatment differs, if the person is conscious or unconscious, it's important to ascertain the condition of the person to be treated.

Heat stroke first aid- If the person is conscious.

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Transfer the person to a safe and cool place.
If it is difficult to move the person, put a parasol or something to avoid direct sun exposure.
Loosen the clothes and belt. Cool the body.
It's important to loosen the clothes and belt to let the heat go away.
Encourage the person to drink.
If the person can drink by himself, let him rest a while till he recovers. If the recovery is sufficient, we can consider that the danger passed.
If the person cannot drink by himself and does not recover, it is necessary to have a medical examination.

Heat stroke first aid-If the person is unconscious.

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Call the ambulance immediately.
If the person is unconscious or has a slow reaction or have a slurred speech, you must call an ambulance immediately.
Transfer the person to a safe and cool place.
Loosen clothes. Chill the body.
Chill the body with cool packs or some ice by putting them around the neck, at armpits and groin.
Attention! Do not force to drink in case of unconsciousness.
The person can be suffocated!