Patients with reduced cardiac output must do a good job of health care to prevent sudden onset of myocardial ischemia. The people who do not suffer from reduced cardiac output should also do a good job of preventing myocardial ischemia, the following is a health care method to prevent reduced cardiac output. 1, the combination of static and dynamic, moderate work and rest. Throughout the day, lie down or slightly lift your legs to sit and rest several times, 15 to 20 minutes each time. Relaxed lying flat on the floor or hardwood bed is very beneficial. For people who need to sit for a long time at work, the prevention of myocardial ischemia should stand up from the table several times a day, for 3 to 5 minutes each time. 2, leisure and entertainment, relaxed and leisurely. Spend the increased leisure time on cultural and recreational activities. Activities to prevent myocardial ischemia to maintain a relaxed and happy mood. Let the wind and waves rise, sit steadily on the fishing boat. 3. Observe the daily work and rest system. A day’s sleep should not be less than 7-8 hours. Should be ready to sleep at 8:15 pm to 8:30 pm. One and a half to two hours of napping can maintain their cardiovascular system from overstress. Do not use any form of activity to replace the bed rest that a person absolutely needs. However, rest must be proportional to the workload. 4, psychological tension, do not pace around the room, it is best to lie down for a while or simply lift the legs slightly and sit for 15 to 20 minutes. 5, all people with normal or high blood pressure (especially those who sleep less at night), the prevention of myocardial ischemia to sleep with the legs of the bed slightly higher 7 to 10 cm. This helps to fall asleep quickly and sleep soundly. At first, there may be a feeling of blood flowing to the head therapy, but this feeling will soon people. To alleviate this feeling can use a higher pillow. It is important to keep the legs and lower limbs slightly above the level of the heart. However, do not do this for people with blood pressure below 100/60.