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Essential4Health

Get Healthy ~ Stay Healthy

Essential4Health

Get Healthy ~ Stay Healthy

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Heat Exhaustion

overheated-woman-t-shirt-using-wave-fan-suffer-from-heat-sweating-cools-herself-heat-exhaustion
"Heat Exhaustion" is a condition where the body overheats due to prolonged exposure to high temperatures and inadequate hydration. Symptoms include dizziness, heavy sweating, nausea, and muscle cramps. It commonly affects people during outdoor activity or labor in hot, humid environments. Immediate action—such as moving to shade, resting, and rehydrating—can prevent it from progressing to heatstroke. Wearing breathable clothing, avoiding peak sun hours, and replenishing electrolytes can reduce the risk and improve overall heat tolerance.

Description

This page has 20 references

"Heat Exhaustion" is a condition where the body overheats due to prolonged exposure to high temperatures and inadequate hydration. Symptoms include dizziness, heavy sweating, nausea, and muscle cramps. It commonly affects people during outdoor activity or labor in hot, humid environments. Immediate action—such as moving to shade, resting, and rehydrating—can prevent it from progressing to heatstroke. Wearing breathable clothing, avoiding peak sun hours, and replenishing electrolytes can reduce the risk and improve overall heat tolerance.

Symptoms & Signs

Body System

Blood, Heart and Circulation

Causes

Dehydration, Overheating, Salt Depletion

Things To Do

If you suffer from heat exhaustion, do the following:


  • get out of the sun and into a cooler space.

  • hydrate the body using mineral, spring water, or an electrolyte formula. Watch out for sweetened electrolyte sports drinks.

  • Eat fresh fruits and vegetables to supply the body with essential minerals.

  • Get plenty of rest.

  • Cool the body by taking a lukewarm shower or a bath.

  • apply cool towels.

  • make use of an air conditioner or a fan.

  • loosen the clothing.

Things To Avoid

When experiencing heat exhaustion, avoid the following:


  • staying in the heat-exposed space. It will make the condition worse.

  • drinking coffee, caffeinated drinks, and alcohol. All of these will further dehydrate the body.

  • smoking, which impairs blood flow and, therefore, decreases the body's ability to adapt to changing temperatures.

  • drinking salted water. Salt retains the fluid in the stomach and does not allow it to travel to other tissues.

  • consuming processed, junk, and fast foods, which are high in sodium, added sugar, and trans fats.

  • eating sugary snacks and drinking sugary beverages.

  • excessive physical activity that could dehydrate the body even further.

Supplements

Direct Support

(Most Helpful → Least Helpful)

These supplements directly affect heat exhaustion by replenishing electrolytes, supporting thermoregulation, or enhancing cellular hydration and energy recovery.

  1. Electrolyte Blend: Electrolyte blend replenishes essential minerals and restores hydration by addressing the body’s water deficit during heat exhaustion. This helps re-establish mineral balance and supports recovery from heat-related stress.

  2. Vitamin C: Vitamin C boosts heat tolerance and helps the body adapt to hot conditions, making it a key preventative measure against heat exhaustion. Its antioxidant properties also enhance the body's resilience during heat exposure.

Indirect Support

(Most Helpful → Least Helpful)

These supplements do not target heat exhaustion directly but may support adrenal function, reduce inflammation, or improve stress and fatigue recovery after heat exposure.

  1. Vitamin B-Complex: Vitamin B-complex, especially B1 (thiamine), B6 (pyridoxine), and B12 (cobalamin), supports energy metabolism and nerve function. These vitamins help maintain energy and nerve health during recovery from heat exhaustion.

Natural Compounds

These natural compounds may help manage heat exhaustion by restoring fluid balance, supporting electrolyte levels, or aiding temperature regulation.

  1. Coconut Water: Coconut water naturally replenishes electrolytes such as potassium, sodium, and magnesium. Widely used for rehydration, it can support the recovery from heat exhaustion.

  2. Salt: Sodium is a primary electrolyte lost during sweating. Replenishing sodium is essential to restore fluid balance and prevent heat-related symptoms. 

Plant Extracts

Direct Support

(Most Helpful → Least Helpful)

These plant extracts directly support recovery from heat exhaustion by aiding hydration, reducing internal heat, or promoting circulation and cooling.

  1. Curcumin: Curcumin’s anti-inflammatory and antioxidant properties help reduce tissue damage and oxidative stress during heat exhaustion. By enhancing the body's heat shock response, it strengthens cellular resilience to heat stress.

  2. Hibiscus Extract: Hibiscus has cooling effects and promotes hydration and circulation. It is effective in lowering body temperature and supports cardiovascular function under heat stress.

Indirect Support

(Most Helpful → Least Helpful)

These extracts do not act directly on heat exhaustion but may support systemic resilience, improve stress adaptation, or enhance recovery from physical exertion.

No replicated and convincing research studies are available, and there is no anecdotal evidence supporting the effectiveness of this method.

Alternative Treatments

These alternative therapies support rehydration, reduce internal heat stress, and promote recovery from the effects of heat exhaustion.

  1. Hydrotherapy: Hydrotherapy, using gradual immersion in cool water starting with lukewarm temperatures, lowers body temperature and alleviates heat exhaustion symptoms. This method promotes recovery from heat-related stress while minimizing the risk of shock.

Functional Lab Tests You May Wish to Explore

Books Worth Considering for Deeper Insight

Currently, no high-quality books meeting our functional, integrative, and natural healing standards are available for this condition. As soon as trusted resources are published, we will review and feature them here.

Podcasts That Offer Valuable Perspectives

Currently, no high-quality podcast episodes meeting our functional, integrative, and natural healing standards are available for this condition. We will review and feature trusted resources here as soon as they become available.

Educational Videos To Learn From

Currently, no high-quality podcast episodes meeting our functional, integrative, and natural healing standards are available for this condition. We will review and feature trusted resources here as soon as they become available.

How Key Nutrients Support the Body

Electrolytes: Electrolytes carry charged ions essential for transmitting nerve impulses, regulating muscle function, and maintaining fluid balance. They are pivotal in supporting hydration, nerve signaling, and overall physiological balance.


Herbal Extracts: Herbal extracts contain bioactive compounds with various medicinal properties, including antioxidant, anti-inflammatory, and antimicrobial effects. They have been used traditionally to support digestion, immunity, and overall health.


Minerals: Minerals are essential for various physiological functions, including bone health, nerve transmission, and enzyme activity. They support overall health by ensuring proper cellular function and metabolic processes.


Vitamins: Vitamins are essential micronutrients that play diverse roles in supporting cellular processes, immune function, and overall health. They must be obtained through diet or supplementation to ensure proper bodily function.

Essential Nutrients Explained

References

[1] Sawka MN, Montain SJ. Fluid and electrolyte supplementation for exercise heat stress. Am J Clin Nutr. 2000;72(2 Suppl):564S-72S.
[2] Squire DL. Heat illness. Fluid and electrolyte issues for pediatric and adolescent athletes. Pediatr Clin North Am. 1990;37(5):1085-1109.
[3] Glazer JL. Management of heatstroke and heat exhaustion. Am Fam Physician. 2005;71(11):2133-2140.
[4] Ishikawa T, Tamura H, Ishiguro H, Yamaguchi K, Minami K. Effect of oral rehydration solution on fatigue during outdoor work in a hot environment: a randomized crossover study. J Occup Health. 2010;52(4):209-215.
[5] Armstrong LE, Hubbard RW, Szlyk PC, Matthew WT, Sils IV. Voluntary dehydration and electrolyte losses during prolonged exercise in the heat. Aviat Space Environ Med. 1985;56(8):765-770.
[6] Maughan RJ. Exercise in the heat: limitations to performance and the impact of fluid replacement strategies. Introduction to the symposium. Can J Appl Physiol. 1999;24(2):149-151.
[7] Yeo TP. Heat stroke: a comprehensive review. AACN Clin Issues. 2004;15(2):280-293.
[8] Carrillo AE, Murphy RJ, Cheung SS. Vitamin C supplementation and salivary immune function following exercise-heat stress. International journal of sports physiology and performance. 2008 Dec 1;3(4):516-30.
[9] Clarkson PM, Marriott BM. The effects of exercise and heat on vitamin requirements. Nutritional needs in hot environments. 1993 Jan 15:137-71.
[10] Marriott BM. The Effect of Exercise and Heat on Vitamin Requirements. InNutritional Needs in Hot Environments: Applications for Military Personnel in Field Operations 1993. National Academies Press (US).
[11] Zhao YH, Shen CF, Kang Y, Qi A, Xu WJ, Shi WH, Liu JW. Curcumin prevents renal cell apoptosis in acute kidney injury in a rat model of dry‑heat environment heatstroke via inhibition of the mitochondrial apoptotic pathway. Experimental and Therapeutic Medicine. 2021 Feb 1;21(2):1-.
[12] Szymanski MC, Gillum TL, Gould LM, Morin DS, Kuennen MR. Short-term dietary curcumin supplementation reduces gastrointestinal barrier damage and physiological strain responses during exertional heat stress. Journal of applied physiology. 2018 Feb 1;124(2):330-40.
[13] Glazer JL. Management of heatstroke and heat exhaustion. American family physician. 2005 Jun 1;71(11):2133-40.
[14] Demartini JK, Casa DJ, Stearns R, Belval L, Crago A, Davis R, Jardine J. Effectiveness of cold water immersion in the treatment of exertional heat stroke at the Falmouth Road Race. Medicine & Science in Sports & Exercise. 2015 Feb 1;47(2):240-5.
[15] Aziz MA, Raduan SZ, Roslida AH, Zakaria ZA, Zuraini A, Hakim MN. Anti-Pyretic Activity of two Varieties of Hibiscus Rosa Sinensis L. Biomedical and Pharmacology Journal. 2021 Mar 30;14(1):61-74.
[16] Daud D, Arsad NF, Ismail A, Tawang A. Anti-pyretic action of Caulerpa lentillifera, Hibiscus rosa-sinensis and Piper sarmentosum aqueous extract in mice. Asian Journal of Pharmaceutical and Clinical Research. 2016;9(1):9-11.
[17] Medeiros AC, de Paiva VD. Therapeutic use of coconut water. Journal of Surgical and Clinical Research. 2012;3(2):83-91.
[18] Saat M, Singh R, Sirisinghe RG, Nawawi M. Rehydration after exercise with fresh young coconut water, carbohydrate-electrolyte beverage and plain water. Journal of physiological anthropology and applied human science. 2002;21(2):93-104.
[19] Eichner ER. The role of sodium in ‘heat cramping’. Sports Medicine. 2007 Apr;37:368-70.
[20] Bates GP, Miller VS. Sweat rate and sodium loss during work in the heat. Journal of Occupational Medicine and Toxicology. 2008 Dec;3:1-6.

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