(Illustration: Recreational Sports Newsletter)

(Illustration: Recreational Sports Newsletter)

[ Menyiasati Tibanya Musim Panas di Jepang’ ]


[ NIC Information ]

Heatstroke is a serious condition which occurs when the body produces or absorbs more heat than it can dissipate. It is usually caused by prolonged exposure to high temperatures.


Heatstroke occurs when the temperature of the body rises sharply. This may happen because of excessively high outside temperatures, physical exertion, extensive burns, and severe sunburn or because of an undiagnosed medical condition.

The heat can affect anyone, but some people are at greater risk of serious harm. These include the elderly, babies and young children, and people who are physically active. Certain medications can also make you more susceptible to heat exhaustion.


Many foreign visitors to Japan, particularly those from cooler climates, are unused to high temperatures and do not cope well with intense heat.

During the summer:

– Try to avoid going out when the sun is at its strongest (11:00 – 15:00). – Avoid strenuous activity – Try to stay in the shade, – Wear a hat, loose fitting clothes and take plenty of water with you. – Drink plenty of fluids – even when you are not thirsty – avoiding alcohol and drinks containing caffeine such as tea, coffee and cola. – Use a high sun protection factor (SPF) sunscreen.


Left untreated, heat exhaustion can develop into potentially lethal heat stroke, so it’s important to be aware of the signs. Heat stroke can also occur suddenly – within 10 to 15 minutes of the first symptoms.

■Symptoms of heat exhaustion include: headaches, dizziness, nausea and vomiting, muscle weakness or cramps, stomach cramps, tiredness, loss of appetite, skin paler than normal, a fast but weak pulse, high temperature.

Action: If some of these symptoms occur after exposure to hot conditions, physical exertion or burns, move to a cool area and re-hydrate by drinking plenty of fluids – sports drinks are particularly effective. Remove any excess clothing and to cool your skin down, shower or sponge yourself using lukewarm water.

■Symptoms of heatstroke include: flushed, hot and dry skin, an extremely high body temperature, a rapid, strong pulse, throbbing headache; dizziness; nausea or vomiting; confusion and unconsciousness. Action: If victims don’t get emergency medical treatment immediately to bring down their body temperature, they can suffer permanent damage to their internal organs or even die.

(NIC Information)

henri daros

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