New Delhi | December 28, 2025

Early morning walks during winter, often considered a healthy habit, may actually increase the risk of heart attacks and strokes, especially among people with existing heart conditions, a senior cardiologist from Fortis Hospital has warned. The caution comes as colder temperatures place extra stress on the cardiovascular system, particularly during the early hours of the day.

Dr Tapan Ghose, Senior Director and Head of the Cardiology Department at Fortis Hospital, Vasant Kunj, explained that winter mornings require added care when it comes to physical activity. According to him, cold weather can directly affect how the heart and blood vessels function, making early morning exercise potentially risky for some individuals.

The main concern, he said, is the effect of cold temperatures on blood vessels. In winter, especially during the early morning hours, blood vessels tend to constrict. This narrowing raises blood pressure and forces the heart to work harder to pump blood through the body. Since body temperature is also at its lowest during early mornings, this effect becomes more pronounced, increasing strain on the heart.

Dr Ghose noted that the risk is not the same for everyone. Healthy individuals usually adapt better to temperature changes. However, people with pre-existing heart disease, uncontrolled high blood pressure, or a past history of stroke are far more vulnerable. For them, the added stress caused by cold weather and physical exertion can trigger serious cardiovascular events.

Another important factor highlighted by the cardiologist is sudden exertion. Many people step out for a brisk walk immediately after leaving a warm indoor environment. This sudden exposure to cold can cause abrupt changes in heart rate and blood pressure, putting additional pressure on the heart. The body needs time to adjust, and skipping this adjustment phase can be harmful.

Dr Ghose also pointed out that early morning hours often have higher pollution levels and lower oxygen density. These environmental conditions can further stress the heart, especially during physical activity. Combined with cold temperatures, this creates a risky situation for those already dealing with heart-related issues.

The cardiologist stressed that certain warning signs during a walk should never be ignored. These include chest discomfort, unusual shortness of breath, dizziness, and palpitations. If any of these symptoms appear, exercise should be stopped immediately and medical help should be sought.

Despite the risks, Dr Ghose clarified that people do not need to give up walking altogether during winter. Instead, he advised adopting safer practices. One key suggestion is to do a gradual warm-up indoors before heading outside. This helps prepare the body and reduces the shock of sudden cold exposure.

Dressing appropriately is also important. Wearing layered clothing helps maintain body heat and protects against cold air. Avoiding very early morning walks, when temperatures are at their lowest, is another simple yet effective step to reduce risk.

For those who can adjust their schedule, Dr Ghose recommended shifting walks to mid-morning hours. At that time, temperatures are milder, pollution levels are often lower, and the body is better prepared for physical activity. This timing offers a safer balance between fresh air and heart health.

In conclusion, while walking remains one of the best forms of exercise, winter conditions demand extra caution. Understanding how cold weather affects the heart and making small changes in routine can go a long way in preventing serious health issues. The message from doctors is clear: stay active, but stay smart—especially during winter mornings.

 Winter Morning Walks May Raise Heart Attack Risk, Warns Fortis Cardiologist; Mid-Morning Exercise Advised

Early morning walks are often seen as the healthiest way to start the day, especially during winter. But doctors are now urging people to be more careful. A senior cardiologist from Fortis Hospital has warned that walking very early in cold weather can increase the risk of heart attacks and strokes, particularly for people with existing heart problems.

Dr Tapan Ghose, Senior Director and Head of Cardiology at Fortis Hospital, Vasant Kunj, explained that cold temperatures cause blood vessels to narrow. This raises blood pressure and forces the heart to work harder. The risk is higher in the early morning hours when both body temperature and outdoor temperature are at their lowest.

The danger is not the same for everyone. Healthy people usually adjust well, but those with heart disease, uncontrolled blood pressure, or a past history of stroke are more vulnerable. Sudden physical activity after stepping out from a warm home into cold air can lead to sharp changes in heart rate and blood pressure, putting extra stress on the heart.

Another concern is air quality. Early mornings often have higher pollution levels and lower oxygen density, which can further strain the heart during exercise. Together, cold weather and poor air conditions can increase the chances of a cardiac event.

The doctor also highlighted warning signs that should not be ignored during a walk. These include chest pain, unusual breathlessness, dizziness, and palpitations. If any of these symptoms appear, people should stop exercising immediately and seek medical help.

Experts say winter walks are not unsafe if done correctly. Simple steps like warming up indoors, wearing layered clothing, and avoiding very early hours can reduce risk. Dr Ghose suggests shifting walks to mid-morning when temperatures are milder and the body is better prepared.

Staying active is important, but listening to your body is just as important.