(New Delhi/Srinagar): As North India shivers through one of the harshest winters in years, doctors have issued a serious health advisory: skip the early morning walk.
Hospitals in Delhi, Punjab, and Jammu & Kashmir have reported a noticeable spike in cardiac emergencies (heart attacks and strokes) over the last week. The primary trigger? Sudden exposure to freezing temperatures during early morning exercise.
Here is why your healthy habit might be dangerous this January.
The Science: Why is the Cold Dangerous?
When you step out into freezing air (especially before sunrise), your body reacts instantly to conserve heat.
- Vasoconstriction: Your blood vessels narrow (constrict) to keep your body warm.
- Blood Pressure Spike: This narrowing forces your heart to pump harder, causing a sudden spike in blood pressure.
- Thicker Blood: Cold weather can increase the risk of blood clotting.
Expert Quote: “For the elderly or those with BP issues, the 5:00 AM to 8:00 AM window is the ‘Danger Zone’. The combination of high BP and cold air can trigger a heart attack even in fit individuals.”
The Advisory: Do’s and Don’ts
Doctors are not asking you to stop exercising. They are asking you to change the timing.
1. STOP Early Morning Walks: Avoid venturing out when the temperature is lowest (before 8:30 AM).
2. Shift to “Sunshine Walks”: Wait for the sun to come out. Walking between 10:00 AM and 4:00 PM is significantly safer as the warmer temperature reduces cardiac strain.
3. Layer Up Correctly: If you must go out, cover your head and ears. 30% of body heat is lost through the head. Inhaling cold air directly is also risky—wear a mask or wrap a muffler around your nose.
Warning Signs (Do Not Ignore)
If you or your parents experience any of these symptoms during a walk, stop immediately:
- Heaviness or pain in the center of the chest.
- Pain radiating to the jaw, neck, or left arm.
- Sudden breathlessness or cold sweats.
- Dizziness.
Special Note for J&K Readers
With temperatures in Srinagar and Pahalgam touching -6°C, the risk is double. Residents using Kangris should ensure they stay hydrated, as dehydration in winter also thickens the blood, adding to the risk.
Frequently Asked Questions (FAQs)
A: Yes, evening walks are safer than early morning walks because the temperature is slightly higher. However, doctors recommend afternoon walks (between 11:00 AM and 3:00 PM) when the sun is out as the safest option during a severe cold wave.
A: While the risk is highest for people over 40 and those with existing heart conditions, extreme cold can affect anyone. Young people might not get a heart attack, but they can suffer from “Cold Angina” (chest pain) or respiratory issues if they exert too much in freezing air.
A: Warm clothes help keep your body temperature up, which is crucial. However, inhaling freezing air directly into your lungs can still trigger blood vessel constriction. If you must go out, always cover your nose and mouth with a scarf or mask to warm the air before you breathe it in.
A: Be alert for sudden pressure or squeezing pain in the center of the chest, pain spreading to the shoulders/neck/jaw, sudden sweating despite the cold, dizziness, or shortness of breath. If you feel these, stop walking immediately and sit down.
Disclaimer: This article is for informational purposes only and describes general health advice issued by medical professionals during cold waves. It is not a substitute for professional medical diagnosis. If you have a history of heart disease, please consult your doctor before changing your routine.
