The so-called secondary prevention of coronary heart disease, the first thing is to have a clear coronary heart disease, and then prevent him from getting another coronary heart disease. Generally speaking, in secondary prevention, those who have coronary heart disease cannot get another heart attack, and those who have got one heart attack cannot get a second heart attack. Secondary prevention is very important. If secondary prevention is not done well, a lot of the money we spend, the energy spent by the doctor or the money spent by the family, is all for nothing. I personally advocate that people with coronary heart disease must have an early imaging, and if the economic conditions are good, put a stent, if not, do bypass, so that within 20 years there will be no heart failure or sudden death, much safer than living with the disease. If the economic condition is good, one or two stents can be put in if the lesion is relatively small. After having a heart attack, we advocate that we must do an imaging to understand where the blockage is and whether it can be solved. We found that after the first heart attack, about 90% of Chinese people should be bypassed and treated. Stenting and medication are certainly necessary, but the most important thing is to change bad habits and control risk factors more than anything else. Absolutely no more smoking, smoking again is not like that, already heart attack and then smoking is not justified at all. Hypertension honestly control blood pressure at the ideal level, high blood pressure must come down, high blood pressure down the purpose is to let the new place not to block, there are plaque places reinforced, not to sell him drugs, now the price is indeed more expensive, that is the National Development and Reform Commission approved, not us approved, we do not care about the price, blood sugar, blood pressure, blood lipid control, bad habits change, smoking must be quit, egg yolk Do not eat more, eat more egg whites, fruits, vegetables, reduce the amount of meals, reduce weight, lifestyle habits must be changed, the less meat the better, it is best not to eat, these are the most basic. The patient I had when I was a junior doctor more than 10 years ago is still alive and well.