Understanding hyperthermia
Definition of hyperthermia
Hyperthermia is when your body heats up beyond normal levels without you wanting it to. Unlike fever, which is your body's response to fighting an infection, in this case your body loses control of its temperature. As a result, heat builds up, which can become dangerous.
What does hyperthermia mean?
Hyperthermia simply means an excessively high body temperature caused by an external factor or strenuous activity. Your body is unable to cool itself down as it should, and that's when problems can start.
Symptoms of hyperthermia
Common symptoms of hyperthermia
The most common signs are hot, dry skin, dizziness, nausea, extreme fatigue, cramps, etc. If you experience these symptoms after exposure to heat, be careful. Your body may be trying to tell you that it is overheating.
Serious signs to watch out for
In more serious cases, hyperthermia can lead to impaired consciousness, vomiting, or even convulsions. This is known as a hyperthermic seizure, a warning sign that should not be taken lightly. You need to react quickly.
Causes of hyperthermia
Common causes of hyperthermia
The most common causes are high ambient temperatures, intense physical exertion (especially in hot weather), dehydration, and poorly ventilated environments. Certain substances or treatments can also disrupt the body's temperature regulation.
Malignant hyperthermia: definition and causes
Malignant hyperthermia is a rare but serious condition, often triggered by certain anesthetics during surgery. It can also be genetic. In this case, the body temperature rises very quickly and requires immediate treatment.
Exertional malignant hyperthermia
Do you exercise in hot weather? Do you sweat a lot, then suddenly stop? Do you feel very weak? These may be signs of malignant exertional hyperthermia. It can affect even trained athletes when the effort is too intense in hot weather. Prevention is essential.
Difference between hyperthermia and fever
Hyperthermia and fever: what are the differences?
Fever is a natural response by the body to fight infection. Your brain deliberately raises your temperature. Hyperthermia, on the other hand, is a loss of control: your body heats up, but it is not a voluntary reaction. And it can happen very quickly.
Risk of hyperthermia vs. risk of fever
Fever is often harmless, although it can be uncomfortable. Hyperthermia, on the other hand, can have much more serious consequences: neurological damage, organ failure, and even hyperthermic shock. It is an emergency that should not be underestimated.
What to do in case of hyperthermia?
Treatment of hyperthermia
First response: get out of the heat (into the shade or a cool place). Then, rehydrate with water, remove any unnecessary clothing, and cool down with a damp cloth or mist spray. If the condition does not improve, call for emergency assistance immediately. G-Heat offers a wide range of cooling clothing to prevent the risk of hyperthermia. Our ranges are designed for athletes with cooling sports vests, but also for everyday or occasional use.
What to do in case of hyperthermic convulsions
If someone has a seizure related to hyperthermia, lay them on their side to ensure they can breathe, do not put anything in their mouth, and stay with them until emergency services arrive. Call emergency services immediately (911 or 994).
Prevention of heatstroke
Avoid physical activity during the hottest hours of the day, remember to stay hydrated, and wear light, loose-fitting clothing. Above all, never leave a child or animal alone in a car, even for a few minutes. The risk of heatstroke is real.
FAQ
- What are the symptoms of hyperthermia?
- Sudden fatigue, dry skin, headache, nausea, cramps... and in severe cases, loss of consciousness or convulsions.
- What causes hyperthermia?
- Excessive heat, intense physical exertion, dehydration, prolonged exposure without ventilation or protection.
- What is malignant hyperthermia?
- A severe form often linked to anesthetic drugs, which causes a rapid rise in body temperature.
- How can you tell the difference between hyperthermia and fever?
- Fever is controlled by the brain (and often linked to an infection), while hyperthermia is an involuntary disturbance of body temperature.
- What should you do in case of hyperthermia?
- Move to a cool place, drink fluids, rest, and contact emergency services if symptoms are severe or persistent.
- What are the risks associated with hyperthermia?
- Seizures, neurological disorders, heat shock, and even death without prompt treatment.
