Chennai, Apr 27: With summer intensifying across Chennai, doctors are witnessing a steady rise in heat-related health complaints, urging residents to take precautionary measures to avoid dehydration and heatstroke.
Medical experts note that extreme heat, combined with high humidity levels typical of coastal regions, is placing additional stress on the human body. “Many people underestimate how quickly dehydration can set in. By the time you feel thirsty, the body is already under stress,” said a senior physician at a government hospital in the city.
According to doctors, early symptoms such as fatigue, dizziness, headaches, and reduced urination should not be ignored. “Patients are increasingly reporting lightheadedness and weakness, especially those exposed to the sun for prolonged periods,” a general practitioner noted, adding that these could be early warning signs of heat exhaustion. .
Health experts emphasise that dehydration occurs faster during summer due to excessive sweating, leading to loss of both water and essential electrolytes. Common signs include dry mouth, dark yellow urine, muscle cramps, and extreme thirst. If untreated, it can escalate into heatstroke, a potentially life-threatening condition.
Doctors in Chennai are also cautioning against food-related illnesses during summer. “Food spoils much faster in hot weather. Even if it looks fine, it may not be safe to consume after a few hours,” warned a gastroenterologist, highlighting the increased risk of infections and dehydration caused by contaminated food.
Authorities and healthcare professionals advise residents to stay indoors during peak afternoon hours, drink plenty of fluids, and opt for light, home-cooked meals.
“Hydration is the first line of defence. Water, buttermilk, and coconut water should be consumed regularly,” a public health official said, stressing that preventive care is crucial during the peak summer months.
With temperatures expected to rise further in the coming weeks, hospitals across the city remain on alert, preparing to handle an increase in heat-related cases while continuing public awareness efforts.

