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Heat intolerance

Symptom characterized by feeling overheated in warm environments From Wikipedia, the free encyclopedia

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Heat intolerance is a symptom characterized by feeling overheated in warm environments or when the surrounding environment's temperature rises.[1] Typically, the person feels uncomfortably hot and sweats excessively.

Compared to heat illnesses like heatstroke, heat intolerance is usually a symptom of endocrine disorders, drugs, or other medical conditions, rather than the result of too much exercise or hot, humid weather.

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Symptoms

  • Feeling subjectively hot
  • Sweating, which may be excessive

In patients with multiple sclerosis (MS), heat intolerance may cause a pseudoexacerbation, which is a temporary worsening of MS-related symptoms. A temporary worsening of symptoms can also happen in patients with postural orthostatic tachycardia syndrome (POTS) and dysautonomia.[citation needed]

Diagnosis

Diagnosis is largely made from the patient history, followed by blood tests and other medical tests to determine the underlying cause. In women, hot flashes must be excluded.[citation needed]

Causes

Excess thyroid hormone, which is called thyrotoxicosis (such as in cases of hyperthyroidism), is the most common cause.[1][2]

Other causes include:

Treatment

Treatment is directed at making the affected person feel more comfortable, and, if possible, resolving the underlying cause of the heat intolerance.

Symptoms can be reduced by staying in a cool environment. Drinking more fluids, especially if the person is sweating excessively, may help.

Cooling vests can be used as a preventative tool to reduce a person's body temperature or when symptoms present to feel more comfortable.

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References

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