High humidity during the monsoon poses significant risks to heart health, especially for individuals with pre-existing conditions like hypertension, heart failure, or atrial fibrillation. The increased moisture levels hinder the body’s cooling process, making the heart work harder and leading to potential issues such as blood pressure fluctuations, dehydration, and stroke risks. To maintain heart health during the monsoon, experts recommend regular blood pressure monitoring, proper hydration, adherence to a heart-healthy diet, and avoiding sudden temperature changes. Additional precautions include watching out for sudden weight gain, staying vigilant about dehydration unnoticed due to high humidity, and maintaining a low-sodium diet.