heat stroke is caused by the loss of the ability to regulate body temperature because it loses the balance of water and sodium in the body due to activities under the scorching sun or intense exercise.

　Especially when the temperature and humidity are unusually high, the wind is weak, the sun is strong, and when the temperature exceeds 35 degrees, it is more likely to become heat stroke.
　However, even during periods when the temperature is not high (when it is not hot), it may occur due to the generation of large amounts of heat or dehydration in muscles during sports and activities.
　Take care of prevention with the right knowledge and respond promptly if you suspect heat stroke.

Symptoms of heat stroke ("heat stroke Environmental Health Manual" issued by the Ministry of the Environment)

I degree

Dizziness, fainting, unevenness, and a large amount of sweating appear as symptoms.

II degrees

Symptoms such as headache, nausea, and sluggishness appear as symptoms.

III degrees

Disorder of consciousness, convulsions, high body temperature, etc. appear as symptoms

heat stroke's Response

If you think it may be heat stroke, it is important to recognize that it is an emergency facing death and take the following actions immediately:

• Move to a well-ventilated shade or a room with a cooler.
• Loosen your clothes
• Cool your body
  Apply a towel wet with ice or cold water to your limbs.
  Or send the wind with a fan or fan
• Replenish water and salt with sports drinks

Prevention of heat stroke
　heat stroke can be life-threatening, but knowing how to prevent it with a little care in everyday life.

Avoid heat
Outdoors, walk in the shade, wear parasols, and wear hats.
Also, refrain from unreasonable exercise or work under the scorching sun.
Exercise and work in hot places change people frequently and make each person's activity time as short as possible.

Hydrate frequently
It is important to hydrate before you are thirsty.

Don't overdo it when you're not feeling well
If you feel sick, such as fatigue, fever, cold, or diarrhea, rest your body without overdoing it.

Dress up
Wear clothes and underwear with good moisture absorption and breathability materials that absorb sweat.

Create a cool environment indoors
Indoors, curtains and blinds prevent direct sunlight to improve ventilation.
Create a cool environment by using a cooler.

[Reference]

※heat stroke Information, Ministry of the Environment http://www.env.go.jp/chemi/heat_stroke/
※Japan Sports Association heat stroke http://www.japan-sports.or.jp/medicine/guidebook1.html

[Publishing date: 2014.7.10]

[Contact]
Public university corporation Shimonoseki City University
Hygiene Committee Executive Office (General Affairs Group, General Affairs Group)
TEL. 083-252-0288 / FAX. 083-252-8099