Heart attack can occur suddenly. But many people experience warning signs. These signs can occur hours, days or even weeks in advance. Recognising these early can save lives. Symptoms can vary widely from person to person, particularly between men and women, and some heart attacks (known as ‘silent’ heart attacks) have minimal or no obvious symptoms.
The following seven important warning signs of heart attack have been compiled from major health authorities such as the American Heart Association, Mayo Clinic, and Cleveland Clinic.
- Unusual or Extreme Fatigue Sudden, intense tiredness that doesn’t improve with rest, even after a full night’s sleep. This is particularly prevalent among women and may manifest weeks prior to a heart attack. It often feels different to normal tiredness.
- Shortness of Breath Difficulty breathing during light activity, at rest, or while lying down. It may occur with or without chest discomfort and can feel like you can’t catch your breath.
- Chest Discomfort or Pressure The classic sign: pressure, tightness, squeezing, fullness, or aching in the center of the chest. It may come and go, last more than a few minutes, or feel like indigestion/heartburn. Not all heart attacks involve severe pain.
- Pain or Discomfort in Other Areas Pain spreading to one or both arms, shoulders, neck, jaw, back, or upper stomach. In women, this radiating pain (especially in the jaw, neck, or back) can occur without prominent chest pain.
- Cold Sweat, Nausea, or Vomiting Breaking out in a cold sweat (especially without exertion), feeling nauseous, or vomiting. These can mimic flu-like symptoms or indigestion.
- Dizziness, Lightheadedness, or Feeling Faint Sudden dizziness or a sense that you might pass out. This can happen with or without other symptoms and may signal reduced blood flow to the brain.
- Anxiety or Sense of Impending Doom A sudden, unexplained feeling of anxiety, panic, or that “something is very wrong.” Some people describe it as a strong sense of impending doom.
Important Differences by Gender
- Men more often experience the classic chest pain.
- Women (and some older adults or people with diabetes) are more likely to have atypical symptoms such as fatigue, shortness of breath, nausea, jaw/back pain, or flu-like feelings — sometimes without any chest pain at all.
What to Do If You Notice These Signs
- Don’t wait — Call emergency services (911 in the US or your local equivalent) immediately, even if symptoms come and go or seem mild.
- Chew and swallow an aspirin (if not allergic and advised by your doctor) while waiting for help — it can help limit damage.
- Note the time symptoms started and describe them clearly to medical staff.
Bottom Line
Many heart attacks send advance warning signals through the body. These include fatigue, shortness of breath, chest discomfort, radiating pain, cold sweats, nausea, dizziness and a sense of impending doom. However, women and people with diabetes often experience more subtle or different symptoms, so it is important not to dismiss them.
The best protection is prevention: manage your blood pressure, cholesterol and diabetes; maintain a healthy weight; don’t smoke; exercise regularly; and get regular check-ups.
