Why Winter Raises Cardiac Risk
Cold temperatures cause blood vessels to constrict and blood pressure to rise, and early winter mornings — a common time for outdoor walks in Dehradun — are consistently associated with higher rates of cardiac events. This isn’t a coincidence; it’s a well-documented seasonal pattern.
Added Risk This Season: Air Quality
Winter in Dehradun often brings both colder temperatures and poorer air quality at the same time — a combination that adds to cardiac strain rather than existing as separate, unrelated concerns.
Practical Winter Precautions
Delay early morning walks until after sunrise, when temperatures are milder
Warm up indoors briefly before stepping into the cold
Layer clothing appropriately, particularly for those managing hypertension or existing heart disease
Continue monitoring blood pressure through the season, as readings can shift with the weather
Who Should Be Especially Careful
Patients with a history of angioplasty, heart failure, or uncontrolled blood pressure should take extra care during winter, and consider a preventive check-up before the coldest months set in.
FAQs
Why do heart attacks seem to increase in winter?
Cold temperatures cause blood vessels to narrow and blood pressure to rise, which places additional strain on the heart, particularly during sudden cold exposure like an early morning walk.
Is it safe to exercise outdoors in winter at all?
Generally yes, with sensible precautions — later timing, proper layering, and a brief indoor warm-up before heading out.
Should my medication dosage change in winter?
Some patients do need adjustments as BP patterns shift seasonally — this is worth discussing with your doctor rather than changing independently.
