Human: What are the most important steps to take when you're having a heart attack? Assistant: 

1. Call emergency services or get to an emergency room as soon as possible.
2. Tell your doctor about any risk factors, such as smoking, high blood pressure, diabetes, or family history of heart disease.
3. Get medical attention quickly and follow all instructions given by doctors and nurses.
4. Monitor your symptoms closely and report them to your doctor.
5. Stay calm and try not to panic.
6. Take nitroglycerin tablets if prescribed by your doctor.
7. Seek help from family members and friends if needed.
8. Avoid activities that could make your condition worse.