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Diseases reference index «Heat intolerance»

Heat intolerance is the inability to be comfortable when external temperatures rise.

Considerations

Heat intolerance often produces a feeling of being overheated and can cause heavy sweating. Heat intolerance usually comes on slowly and lasts over the long-term.

Causes

  • Amphetamines such as appetite suppressants
  • Caffeine
  • Excess thyroid hormone (thyrotoxicosis)
  • Menopause

Home Care

Keep room temperature at a comfortable level. Drink plenty of fluids.

When to Contact a Medical Professional

Call your health care provider if you have persistent and unexplained heat intolerance.

What to Expect at Your Office Visit

Your health care provider will take a medical history and perform a physical examination.

Medical history questions may include:

  • Time pattern
    • Have you had heat intolerance before?
    • Have you always had difficulty tolerating heat?
    • When did you begin to develop heat intolerance?
    • Do you often feel hot when other people do not complain of the heat?
  • Associated complaints
    • Is it worse when you exercise?
    • What other symptoms do you have?
      • Dizziness
      • Fainting
      • Palpitations
      • Rapid pulse (heart rate)
      • Vomiting

Tests that may be performed include:

  • Blood studies
  • Thyroid studies (TSH, T3, free T4)

After seeing your health care provider:

You may want to add a diagnosis related to heat intolerance to your personal medical record.

Alternative Names

Sensitivity to heat; Intolerance to heat

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