A heart attack is a medical emergency where the blood supply to the heart is blocked, usually by a blood clot. It’s important to be aware of the symptoms of a heart attack so you can spot them and get immediate medical attention.

Here are 5 signs to look out for:.

1. Chest pain or discomfort

The most common symptom of a heart attack is a feeling of tightness, pressure, squeezing or discomfort in the chest region. This feeling can last for several minutes, or it may come and go. It can also feel like heartburn or indigestion.

The pain may spread to the arms, neck, jaw, back, or stomach.

2. Shortness of breath

You may feel like you can’t catch your breath or you may start wheezing or gasping for air. This feeling may come on suddenly or it may happen gradually. You may feel this symptom before you experience any chest pain or discomfort.

3. Nausea or vomiting

You may feel sick to your stomach or you may actually vomit. This symptom can be especially common among women, the elderly, and people with diabetes.

4. Sweating

You may suddenly break out in a cold sweat, even if the temperature is relatively mild. This symptom can occur with or without chest pain or discomfort.

5. Fatigue or weakness

You may feel weak or unusually tired, even if you haven’t exerted yourself much. This symptom is especially common among women and older adults.

If you experience any of these symptoms, call for emergency medical help immediately. Don’t attempt to drive yourself to the hospital or wait until the symptoms go away.

Getting prompt medical treatment can make a big difference in your chances of survival and recovery.