Heat intolerance

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Heat intolerance is a symptom reported by people who feel uncomfortable in hot environments. 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.

Symptoms[edit]

  • 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.

Diagnosis[edit]

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.

Causes[edit]

Excess thyroid hormone, which is called thyrotoxicosis, is the most common cause.[1]

Other causes include:

Treatment[edit]

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.

References[edit]

  1. ^ a b Wilkins, Lippincott Williams &. Nursing: Interpreting signs & symptoms. Lippincott Williams & Wilkins; 2007-03-01 . ISBN 9781582556680. p. 306–307.
  2. ^ "Autonomic neuropathy" from U.S. National Library of Medicine's MedLine Plus. Accessed 2015-05-20.