Heat Stroke : How to react ?

heatstroke results from too much exposure to the sun’s rays, these symptoms are numerous: dehydration, fatigue, headache… This increase in body temperature can push the body to a temperature above 40°C. However, there are simple ways to limit the risk of heatstroke or to treat it. The earlier a heatstroke is taken into account, the less its impact will be on the health of the victim.

What Is Heat Stroke ?

One of the different forms of sunstroke, heat stroke, results from prolonged action of solar radiation on the head. heatstroke is the body’s inability to control its temperature, and the latter rises rapidly. Physical effort as well as sweating promotes water loss and can lead to dehydration which lowers blood pressure and increases the risk of heatstroke. Heatstroke results from the body’s defense reaction to this rise in body temperature, the body no longer being able to regulate itself around 37°C. Heatstroke more easily affects the elderly or children who tend not to hydrate themselves enough and whose immune defenses are weaker. Heatstroke is not associated with sunburn. Wearing a mask despite the heat can promote Heatstroke. In summer, and particularly during heat waves, it is a good idea to protect yourself against this risk.

What Are The Symptoms Of Heat Stroke?

Generally, the symptoms of heatstroke are:

  • an abnormally high body temperature
  • severe headaches
  • nausea
  • cramps (arms, buttocks, legs or arms)
  • sometimes vomiting
  • hot and dry skin
  • a big tiredness
  • dehydration and feeling thirsty
  • drop in blood pressure
  • increased heart rate
    In the most severe cases, the victim’s breathing becomes rapid and jerky, they have a feeling of tightness and may have difficulty speaking.

In the most serious cases, the victim of heatstroke may have delirious flashes. It is important to control the temperature of a person in heatstroke using a thermometer. If the body temperature exceeds 40°C, then we speak of hyperthermia, it is advisable to call an emergency service. Linked to neurological disorders, heat stroke can have extremely serious consequences: convulsions, mental confusion, coma, etc.

What To Do In Case Of Heatstroke


As soon as a Heatstroke is detected, it is good to react urgently. The first reflex in case of heatstroke is to cause an immediate lowering of body temperature. To do:

  • Move the person to the shade, if possible to a cool place, to stop the effects of the sun.
  • Make him drink water to rehydrate him, preferably not too cold water to limit the risk of thermal shock.
  • Cool victim’s head and neck with cold water, damp towel or ice pack. Once the head and neck cool down, you can wet the other limbs to speed up and promote recovery.
  • You can also use a survival blanket, shiny silver side out to prevent the sun’s rays from continuing to affect the victim’s body temperature.It is therefore advisable for hikers to bring a thermometer and cold accessories in their hiking first aid kit to be able to react to heatstroke in the great outdoors.

Tips To Avoid Heatstroke


Although children and the elderly are more susceptible to Heatstroke, anyone can get it. To simply limit the risk of heatstroke, wearing a headgear (cap, hat, bucket hat, etc.) remains the simplest solution by preventing the sun’s rays from reaching the head. Wearing light, thin clothing that limits sweating is also a good idea. In the same way, take care to wet your neck often in periods of high heat, and to hydrate yourself regularly, drinking water remains the best solution to avoid heatstroke. To cool the ambient air, do not hesitate to use a fan.

What you must remember

  • Heatstroke results from a rise in body temperature and dehydration.
  • As soon as the body temperature exceeds 40°C, we speak of hyperthermia.
  • In the worst case, a heatstroke can lead to a coma.
  • In case of Heatstroke, place the victim in the shade, wet his head and neck and hydrate it.
  • Wearing a headgear and drinking water remain the best solutions to avoid heatstroke.