Heatwaves increase risks for kidney and heart health

Extreme heat and high humidity pose significant risks to kidney and cardiovascular health due to fluid and electrolyte loss. Medical experts warn that heavy sweating can deplete essential minerals like sodium, potassium, and magnesium, which are critical for nerve conduction, muscle movement, and heart rhythm.

For kidney health, dehydration reduces blood flow to the organs, potentially causing rapid changes in creatinine and electrolyte levels. This is particularly dangerous for chronic kidney disease and dialysis patients. Indicators of dehydration include dark-colored urine.

Cardiovascularly, dehydration decreases blood volume, forcing the heart to work harder to circulate blood. This can lead to palpitations, racing heartbeats, and sudden fluctuations in blood pressure. Individuals with hypertension, heart disease, or those taking diuretics are at higher risk for complications such as arrhythmia, fainting, or even heart attacks.

To mitigate these risks, experts recommend increasing fluid intake, avoiding direct sun exposure during peak hours, and adopting light, Mediterranean-style diets. Severe symptoms like confusion, chest pain, or shortness of breath require immediate medical attention.