Following the National Meteorological Service's initial heatwave alert for Buenos Aires and AMBA from December 29, the extreme heat that began on December 26 continues, with maximums potentially reaching 38°C. Health experts urge preventive measures against heatstroke, especially for vulnerable groups during the holidays.
The heatwave, first forecasted by the National Meteorological Service (SMN) with highs above 30°C starting December 26 and peaking at 35°C from December 29-31, has materialized with temperatures nearing 40°C in Buenos Aires and the Buenos Aires Metropolitan Area (AMBA). This coincides with summer holidays, amplifying public health concerns.
Experts from the University of Buenos Aires' Hospital de Clínicas, including clinical physician Diego Sánchez Gelós, detail how the body regulates internal temperature (36-37°C) but fails under extreme heat and dehydration, leading to heat exhaustion and potentially heatstroke. Symptoms start with thirst, dry mouth, dizziness, headaches, and nausea; severe cases involve fever over 39°C, confusion, and unconsciousness, demanding urgent care.
"When thermoregulation mechanisms fail, heatstroke occurs, requiring immediate medical attention," says Sánchez Gelós. At-risk groups include the elderly, children, and those with cardiovascular or diabetic conditions.
Prevention includes drinking at least 2 liters of water daily (not just when thirsty), avoiding sun from 10 a.m. to 5 p.m., wearing light clothing, eating hydrating foods, and limiting activity to cooler times. For symptoms, rest in shade, use wet cloths, hydrate if alert, or seek emergency cooling and medical help. Avoid alcohol, caffeine, sugar, and peak-hour exposure to reduce risks amid intensifying climate extremes.
