A sunny and handsome guy walked into the ward with the hospitalization procedure in hand and was admitted to the bed I was in charge of, and the admission card read: cerebral infarction? I would have been surprised if I had just started working, but now that I’ve managed so many patients like this, I’m not surprised. The young man is 29 years old, he said 2 weeks ago in the office for no reason suddenly appeared dizziness, spinning, nausea, vomiting, then took time off work and went home to lie down, and did not take it seriously, lying a few days after the dizziness disappeared, but he always felt wrong, there seems to be something in front of his eyes, looking at people always have to tilt the head, part of the field of vision seems to be somehow invisible. He used to be quite healthy, except that he was once told at a physical examination that his blood pressure was high, but he didn’t take it seriously. I immediately took his blood pressure 160/100mmHg, which was really high! I warned him not to drive in the future and to be careful when walking because you can’t see anything in the right side of your field of vision, so it’s easy to hit! He was given a cranial MRI and found that there was indeed a new infarct lesion in the left occipital lobe, and what was even more depressing was that the MRI showed that he had already had at least one infarction in the past; he was also given a cranial vascular MRA and found that although he had no obvious arterial stenosis, he had seen signs of sclerosis in his intracranial arteries. His blood pressure was high for several days thereafter, and blood tests revealed elevated blood homocysteine. Because some young people’s hypertension may be caused by pheochromocytoma, renal artery stenosis, aldosteronism, and vasculitis, these diseases were ruled out after the relevant tests were performed. The diagnosis of the young man was established: cerebral infarction and hyperhomocysteinemia. After treatment, I regretted to find that only part of his visual field defect was restored by the time he was discharged from the hospital. One reason is that the compensation after brain tissue necrosis is limited and more or less leaves after-effects, and another reason is that the site of his last cerebral infarction was near the site of this infarction, and the loss of brain tissue in two similar areas caused the present result. Cerebral infarction is a disease caused by ischemia and necrosis of the brain tissue supplied by the blood supplying arteries of the brain due to various reasons, and the symptoms of the patient often include weakness of the limbs, numbness, distorted eyes and mouth, difficulty in speech, difficulty in swallowing, choking on water, dizziness, unstable walking, etc. When the size of the infarcted brain tissue is too large, it causes coma and death. Even after treatment, many patients still have various sequelae, and it is common to see some elderly people walking in a circle gait in the community, 80% of which are caused by cerebrovascular diseases such as cerebral infarction or cerebral hemorrhage. In the past, cerebral infarction was still mostly seen in the elderly, especially those suffering from hypertension, diabetes, hyperlipidemia, coronary heart disease, atrial fibrillation and smoking, but now many young people have gotten these “three high” diseases early due to poor lifestyle habits, and many young people smoke a lot for a long time, so it is not surprising that young people get cerebral infarction. Recently there was another young man who was also hospitalized because of visual field defects, and the diagnosis was also cerebral infarction. He had a congenital heart disease, so he had wall clots in his heart. These clots in the heart are like broken wall skin that is not solid and can fall off at any time and rush to the brain with the blood to cause a cerebral infarction. He is also unable to drive and has to be careful not to bump into people or be hit when he walks. What should be done to prevent cerebral infarction in young people? The risk factors of cerebral infarction mainly include hypertension, diabetes, coronary heart disease, hyperlipidemia, smoking, hyperuricemia, hyperhomocysteinemia, carotid plaque, etc. If young people are found to have these conditions during physical examinations, they must be treated early and controlled early, otherwise it will be a little late when the damage to the blood vessels and quantitative changes reach qualitative changes over time! These are common risk factors, but there are also some relatively rare ones to pay attention to, such as congenital heart disease, arrhythmia, vasculitis, other autoimmune diseases and so on. Life should pay attention to maintain a healthy lifestyle, avoid sedentary, increase physical exercise, diet to reduce salt, oil intake (especially the northerners), avoid staying up late, overworked. Smokers must quit smoking!