People with heart conditions are generally advised to avoid high-altitude travel unless cleared by a doctor. Reduced oxygen levels can place additional strain on the cardiovascular system.
Why altitude affects heart health
High-altitude areas such as Hunza, Skardu, and Deosai sit well above 2,500 meters, where oxygen levels are significantly lower than at sea level. This forces the heart to work harder to deliver oxygen throughout the body.
For individuals with heart disease, including coronary artery disease or a history of heart attacks, this added strain can increase the risk of complications. Symptoms like chest discomfort, shortness of breath, or fatigue may worsen at altitude.
Precautions if travel is considered
- Ascend gradually to allow the body to adjust
- Avoid intense physical activity in the first few days
- Watch for early warning symptoms
- Seek medical advice before planning the trip
Even stable conditions require careful evaluation before visiting high-altitude regions in Pakistan.