As temperatures surge across Mumbai and surrounding regions, Apex Group of Hospitals has reported a noticeable rise in cardiac-related complaints, particularly among high-risk groups. Doctors warn that extreme heat can place additional stress on the heart, increasing the chances of complications such as heart attacks, dehydration, and sudden spikes in blood pressure.
Recent data highlights the growing concern around heatwaves in India. According to the India Meteorological Department (IMD), 2024 and early 2025 have seen longer and more intense heatwave spells across several states. Studies indicate that heat-related illnesses and deaths have risen steadily over the past decade, with thousands affected annually. Urban areas like Mumbai are particularly vulnerable due to high humidity and dense populations. Health experts note a clear link between rising temperatures and increased hospital admissions for cardiovascular and respiratory issues.
Heatwaves can lead to excessive sweating and fluid loss, which in turn reduces blood volume. This forces the heart to work harder to maintain circulation. In vulnerable individuals, especially those with pre-existing conditions, this added strain can become dangerous.
“During intense heat, the body struggles to regulate temperature, and this puts pressure on the cardiovascular system,” said Dr. Hemant Khemani, Consultant Interventional Cardiologist at Apex Group of Hospitals. “We are seeing more patients with chest discomfort, palpitations, and uncontrolled blood pressure during this period.”
Dr. Hemant Khemani emphasized that people with diabetes and hypertension need to be especially cautious. “Patients with diabetes should monitor their blood sugar levels more frequently, as dehydration can cause fluctuations. It is important to stay hydrated, avoid sugary drinks, and not skip meals,” he said. “For those with high blood pressure, regular medication must not be missed. Heat can cause sudden drops or spikes in blood pressure, so routine monitoring is essential.”
He also advised simple but effective precautions: staying indoors during peak afternoon hours, drinking adequate water even if not thirsty, wearing light clothing, and avoiding heavy physical exertion in the heat.
Elderly individuals and those with a history of heart disease are at the highest risk. Warning signs such as persistent chest pain, dizziness, breathlessness, or unusual fatigue should not be ignored and require immediate medical attention.