Health experts in Delhi and the National Capital Region are urging residents to follow strict safety protocols as temperatures climb between 40 [1] and 43 °C [3].

These precautions are critical to prevent life-threatening heat-related illnesses, including heatstroke and severe dehydration, during the current extreme heatwave. Medical professionals said that systemic failure can occur quickly when the body cannot cool itself effectively in high temperatures.

Dr. Naval Vikram, a professor at AIIMS Delhi, and Dr. L Shyam Singh, chief of RML Hospital, provided guidance on mitigating heat risks [1, 2]. They said that individuals should wear loose-fitting clothing and ensure their heads are covered when outdoors to minimize direct sun exposure [1, 2].

For those working in the heat, experts said to take regular shade breaks. The recommended schedule includes a 15- to 20-minute break after every two hours of work [4]. These intervals allow the body to recover and lower its core temperature, a necessary step to avoid heat exhaustion.

Hydration is another primary focus of the medical advice. Experts said that fluids should be consumed frequently, specifically every 30 to 45 minutes [4]. This frequency is intended to maintain hydration levels before the onset of thirst, which often occurs after dehydration has already begun.

The guidance comes as the region faces a range of peak temperatures, with some reports citing 40 °C [1] while later forecasts indicated a rise to 41-43 °C [3]. Following these specific intervals for rest and fluid intake is presented as the most effective way to avoid emergency hospitalization during the peak of the summer season.

“Drink fluids frequently, specifically every 30-45 minutes.”

The specific timing of rest and hydration intervals suggests that standard 'drink water' advice is insufficient for extreme heat. By prescribing fixed intervals—every 30 to 45 minutes for fluids and every two hours for shade—health officials are treating heat exposure as a physiological limit that requires structured management to prevent systemic collapse in the NCR's workforce and general population.