1. Healthy diet: keep a balanced diet, take in proper amount of vegetables, fruits, whole grains and low-fat protein, and reduce the intake of saturated fat and cholesterol. Avoid eating too much salt and processed food.

2. Moderate exercise: Take at least 150 minutes of moderate-intensity aerobic exercise every week, such as brisk walking, running and cycling. In addition, you can also do moderate-intensity strength training, such as lifting weights or doing push-ups.

3. Weight control: maintain a healthy weight range and avoid obesity. If you are overweight or obese, take an appropriate diet and exercise plan and gradually lose weight.

4. Quit smoking and limit alcohol: Quitting smoking is an important measure to prevent heart disease, and it is also necessary to limit alcohol consumption. Excessive drinking will increase the risk of heart attack and cardiac arrest.

5. Control blood pressure and blood sugar: Hypertension and diabetes are important risk factors for heart disease. Regularly monitor blood pressure and blood sugar levels, and take appropriate medication and lifestyle changes to control them.

6. Managing stress: Being under high stress for a long time will increase the risk of heart attack. Learn effective ways to cope with stress, such as relaxation techniques, meditation and physical activities.

7. Regular physical examination: Regular physical examination can find out the risk factors of heart disease and potential health problems as soon as possible, and take corresponding preventive and therapeutic measures in time.

8. Learn CPR skills: Learning basic CPR skills, including chest compressions and artificial respiration, can help improve the survival rate in the case of cardiac arrest.