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Experiencing excessive body heat, also known as heat intolerance or hyperthermia, can be uncomfortable and concerning. It can be caused by various factors, and understanding the underlying causes and taking appropriate measures is essential for managing this condition.


  • Environmental Factors: High temperatures, hot weather, and humidity can lead to an increase in body heat. Prolonged exposure to heat without adequate cooling can result in heat-related illnesses like heat exhaustion or heatstroke.
  • Medical Conditions: Several medical conditions can cause excessive body heat, including: 
  • Hyperthyroidism: An overactive thyroid gland can lead to increased metabolism and heat production.
  • Menopause: Hormonal changes during menopause can cause hot flashes and increased body heat.
  • Infections: Fever associated with infections can raise body temperature.
  • Certain Medications: Some medications can affect body temperature regulation as a side effect.
  • Dehydration: Inadequate fluid intake can impair the body’s ability to regulate temperature, leading to overheating.

  • Exercise: Intense physical activity can increase body heat production. However, excessive exercise without proper cooling mechanisms can lead to overheating.


  • Feeling Hot: An overall sensation of being too warm, even in normal or cool environments.

  • Sweating: The body’s natural response to regulate temperature is to sweat, which can lead to a feeling of being sticky or damp.

  • Rapid Heartbeat: Increased heart rate may occur as the body tries to cool down.

  • Fatigue: Excessive heat can lead to fatigue and weakness.

  • Dizziness or Fainting: Severe heat-related conditions can cause dizziness, fainting, confusion, or even loss of consciousness.

Ways to Address Excessive Body Heat

  • Stay Hydrated: Drink plenty of water throughout the day, especially in hot weather or during exercise.

  • Wear Appropriate Clothing: Choose lightweight, breathable fabrics, and loose-fitting clothing to help regulate body temperature.

  • Avoid Hot Environments: Limit exposure to extreme heat and humidity, and use fans or air conditioning when available.

  • Rest and Cool Down: Take breaks in a shaded or air-conditioned area if you are exposed to heat for extended periods. Use cool compresses or take a cool shower to lower body temperature.

  • Manage Medical Conditions: If you have a medical condition contributing to heat intolerance, such as hyperthyroidism, consult with a healthcare professional for proper treatment and management.

  • Monitor Medications: If you suspect that medications are causing your symptoms, talk to your healthcare provider about alternative options or adjustments.

  • Avoid Alcohol and Caffeine: These substances can contribute to dehydration and worsen heat intolerance.

  • Recognize and Treat Heat-Related Illness: If you experience symptoms like heat exhaustion or heatstroke (e.g., confusion, high body temperature, nausea), seek immediate medical attention.