What is heatstroke?
heatstroke (or heat stroke) is a condition in which the body temperature increases excessively, often exceeding the threshold of 40 degrees Celsius due to prolonged exposure to hot environments or strenuous exercise in the sun without having time to replenish water. When the body cannot cool down on its own, internal organs begin to be affected, especially the brain, heart and kidneys.
Acute kidney damage due to heatstroke
According to nutritionist Safia Livingston ( Mas MasSH Hospital, New Delhi, India), one of the most dangerous complications of heatstroke is acute kidney injury (AKI). When body temperature increases sharply, blood flow to the kidneys decreases, damaging renal Tube Cells and reducing the kidney's filtering function. In many cases, diarrhea that is not treated promptly can lead to kidney failure, forcing the patient to have blood filtered or receive long-term treatment.
Risk of progression to chronic kidney disease
When acute kidney damage occurs multiple times or is not treated effectively, the patient is at high risk of progressing to chronic kidney disease (CKD). People with a history of kidney disease, diabetes, high blood pressure or the elderly will be more susceptible to severe effects when experiencing heatstroke.
Safia Livingston experts say that 25-35% of cases of exercise-induced heatstroke can lead to acute kidney failure, which highlights the severity of the problem if not properly prevented.
The important role of rehydration and electrolytes
The kidneys work effectively when the body is provided with enough water and electrolytes. When dehydrated, the kidneys have to work harder to thicken urine, which makes it more susceptible to damage. In addition, electrolyte imbalance also affects the kidneys' ability to filter and regulate blood pressure.
To protect kidney health during hot weather:
Drink enough water every day (about 2-3 liters depending on your weight and activity).
Supplement natural electrolytes from coconut water, salted lemon, yogurt, banana...
Avoid alcohol and caffeine - substances that can cause diarrhea and cause faster dehydration.
Observe urine color: light yellow is a good sign of hydration.
