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Do increasing heat and high temperatures increase the risk of heart attack? Know what experts say

Sanjeev Kumar | May 21, 2026 6:22 PM CST

Risk of heart attack in summer

The temperature is continuously increasing in many parts of the country. Heat wave is also going on. Due to this, people's health is deteriorating a lot. Dehydration cases are increasing in hospitals. There is also a risk of heat stroke, but can rising temperature and heat also increase the risk of heart attack. Are those who already have heart disease at greater risk this season? Let us know about this from experts.

Dr. Ajit Jain, Associate Professor in the Department of Cardiology, Rajiv Gandhi Hospital, Delhi It is said that increasing heat does not directly cause heart attack, but in this season heart But may have an impact. Especially those who already have heart disease need to take special care.

What is the connection between heat and heart disease?

Dr. Jain explains that when the temperature is very high, the body works harder to keep itself cool. During this time, the heart has to work faster to increase blood circulation in the body. Excessive sweating can cause deficiency of water and essential minerals in the body, which can affect blood pressure and heart rate. If a person remains dehydrated for a long time, it can also cause the blood to thicken in some cases. This affects the heart. In some cases, it can also cause heart attack. This happens when a blood clot forms in an artery of the heart due to thickening of the blood.

Dr. Jain explains that not every person is at risk of heart attack due to increasing heat. If a person is hydrated. There is less sunlight. If there is no BP disease and no family history of heart diseases, then there is nothing to worry about. All that is important is to drink adequate amount of water throughout the day and avoid going out during strong sunlight and heat.

Which people are at greater risk?

high blood pressure patients

any serious heart disease

elderly

people who stay in the sun for a long time

what are the symptoms

sudden sweating

increased heart rate

severe chest pain

breathlessness

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