Every winter, cardiology wards in Punjab get busier. Doctors notice it, and so do families: a father who felt fine all autumn develops chest pain on a cold January morning walk. Research from around the world shows heart attacks rise in the colder months.
This guide explains why heart attacks in winter are more common, the warning signs you should never ignore, and the simple blood tests that help you understand your heart risk.
Quick Answers
- Cold weather narrows blood vessels and raises blood pressure, which makes the heart work harder.
- South Asians tend to get heart disease about 10 years earlier than many other populations.
- Chest pain is an emergency. Go to hospital, not to a lab.
- For prevention, the key tests are a lipid profile and HbA1c, along with blood pressure checks.
- Troponin tests are used by doctors to diagnose a heart attack, usually in a hospital setting.
Why Heart Attacks Rise in Winter
Several things come together in the cold months:
- Blood vessels tighten in the cold to keep the body warm, pushing blood pressure up.
- Blood becomes slightly thicker and more likely to clot.
- Flu and chest infections add strain to the heart. Getting the flu vaccine lowers heart risk too.
- Smog in Punjab irritates blood vessels as well as lungs.
- Heavy meals, less exercise and weddings mean more ghee, sweets and late nights.
- People ignore early symptoms, blaming them on gas, cold or tiredness.
Warning Signs: Do Not Wait
- Chest pressure, heaviness or burning for more than a few minutes
- Pain spreading to the arm, neck, jaw, back or upper stomach
- Breathlessness, especially at rest
- Cold sweat, nausea or dizziness, often mistaken for gas or acidity
- Women, diabetics and the elderly may only feel tiredness, breathlessness or indigestion
Call Rescue 1122 or get to the nearest emergency straight away.
A heart attack is treated in hospital, ideally within the first hours. Do not stop at a lab for a test, and do not drive yourself if you can avoid it.
The Tests That Check Your Heart Risk
Prevention starts with knowing your numbers. These tests are done when you feel well, to catch risk early.
| Test | General target | Why it matters |
|---|---|---|
| LDL cholesterol | Below 100 mg/dL | Builds plaque in arteries |
| HDL cholesterol | Above 40 (men), above 50 (women) | Protective; often low in South Asians |
| Triglycerides | Below 150 mg/dL | Raised by sugar, refined carbs and inactivity |
| HbA1c | Below 5.7% | Diabetes doubles heart attack risk |
| Blood pressure | Below 130/80 mmHg | Checked at home or clinic |
Lipid profile
A Lipid Profile measures total cholesterol, LDL, HDL and triglycerides. It needs a 9 to 12 hour fast. Our detailed guide on reading your lipid profile explains each number.
HbA1c
HbA1c shows your average blood sugar over three months. Diabetes is one of the biggest drivers of heart disease in Pakistan, and many people have it without knowing.
Kidney function
A Kidney Function Test (RFT) matters because kidney disease and heart disease often go together, and many heart medicines are adjusted according to kidney function.
What About Troponin and Cardiac Enzymes?
TROP-I and Cardiac Enzymes measure proteins released when heart muscle is damaged. Doctors use them to confirm or rule out a heart attack, often repeating them a few hours apart.
These are not screening tests for healthy people, and a normal result taken soon after chest pain starts does not rule out a heart attack. If you have chest pain right now, the hospital is the right place for this test. Doctors sometimes ask us to run a troponin on patients they have already assessed, and we can process these quickly when needed.
Who Should Check Their Heart Risk?
- Men over 35 and women over 45
- Anyone with diabetes, high blood pressure or high cholesterol
- Smokers, including naswar and shisha users
- A parent or sibling who had a heart attack before 55 (men) or 65 (women)
- People carrying extra weight around the waist
Protecting Your Heart This Winter
- Keep warm, especially early morning. Wear a hat and layers outdoors.
- Do not stop exercising. Walk indoors or at warmer times of day.
- Keep taking blood pressure, sugar and cholesterol medicines as prescribed.
- Watch salt, ghee and sweets during wedding season.
- Get a flu vaccine if you have heart disease, diabetes or are over 65.
- Quit smoking. The benefit to your heart starts within weeks.
Heart Checkups in Gujranwala
Book free home sampling for an early morning fasting sample, or visit any branch. You can find every branch address on our locations page.
For a fuller yearly picture, the Essential Wellness Profile combines lipid profile, HbA1c, kidney, liver and thyroid tests.
Further reading: Cardiovascular diseases (WHO).
Frequently Asked Questions
Can a blood test predict a heart attack?
No single test can predict one, but lipid profile, HbA1c and blood pressure together show your risk, and lowering them reduces it.
Do I need to fast for a lipid profile?
Yes, 9 to 12 hours is usual. Water is fine.
My cholesterol is normal. Am I safe?
Normal cholesterol lowers your risk but does not remove it. Smoking, diabetes, blood pressure and family history matter too.
Should I get a troponin test if I feel chest pain?
Go to a hospital emergency. They will do an ECG and troponin and can treat you immediately if needed.
This guide is general health information from the City Care Lab team in Gujranwala. It does not replace advice from your own doctor.