As temperatures continue to soar across India, heatwaves are no longer just a seasonal discomfort but a growing public health concern. Increasingly frequent and intense, these extreme weather events are affecting
not only vulnerable populations but also otherwise healthy individuals.
From dehydration and heatstroke to disruptions in sleep, productivity, and overall well-being, the impact of prolonged heat exposure is becoming more visible. Urban environments, with dense infrastructure and limited green cover, are further amplifying the risks.
Health experts warn that without timely awareness and preventive measures, heat-related illnesses could escalate, making it crucial to understand and address their wide-ranging effects.
Dr Tushar Goyal, Consultant Physician, Kailash Hospital, warns that the rising frequency and intensity of heatwaves in India are having a serious impact on public health.
“What was once considered a seasonal inconvenience has now evolved into a full-blown health emergency, affecting not just vulnerable groups but otherwise healthy individuals as well,” says Dr Goyal.
Healthcare professionals are increasingly observing conditions such as dehydration, heat exhaustion, and heatstroke, many of which require immediate medical attention to prevent life-threatening consequences.
“We are seeing a worrying trend where even healthy young individuals are being affected, alongside elderly patients with pre-existing conditions,” he explains. “Prolonged exposure to heat, especially without adequate hydration, is significantly increasing health risks.”
One of the most common yet overlooked concerns during heatwaves is dehydration.
“The body loses excessive water and essential salts through sweating. Without timely replenishment, this can disrupt normal bodily functions,” notes Dr. Goyal. “Many people ignore early warning signs, mistaking them for routine fatigue, which can quickly escalate into more serious conditions.”
Urban environments are further worsening the situation.
“Concrete structures, reduced green cover, and heat-retaining surfaces like roads and buildings trap heat, making even indoor spaces uncomfortable,” he says. “This significantly raises the risk, especially for outdoor workers who spend long hours exposed to extreme temperatures.”
Beyond physical health, heatwaves are also affecting mental well-being and daily functioning.
“Extreme heat can lead to sleep disturbances, constant fatigue, and even respiratory discomfort, all of which interfere with productivity and quality of life,” adds Dr Goyal.
However, there are preventive measures that can significantly reduce these risks.
“Staying well-hydrated, avoiding outdoor exposure during peak afternoon hours, wearing light and breathable clothing, and paying attention to early symptoms can make a crucial difference,” he advises.
As temperatures continue to rise, awareness and proactive care are essential. “Heatwaves are no longer just a weather phenomenon, they are a public health emergency that requires collective awareness and action,” concludes Dr Goyal.
