In the clinic, previously often in the 50 or 60 years of age or older is prone to cerebral infarction, now some people in their 30s or even 20s have the disease. The following issues should be paid attention to: 1, smoking: the bad effects of smoking need not be said, we all know. It is also an independent risk factor for cerebral atherosclerosis. In the clinic often see patients in their 30s smoking age are almost 20 years, quit smoking or the first priority. 2, lifestyle habits: stay up late, irregular diet, work and life stress, too much greasy food, etc., also through stress, neurological excitement, lipid metabolism disorders and other pathways to play a role. 3, hyperhomocysteinemia: It is also an independent risk factor for cerebral atherosclerosis. There are some patients who have good lifestyle habits and no hypertension diabetes, etc., but they get cerebral infarction, and only after examination is found to be hyperhomocysteinemia, which must be controlled by drugs. 4, arteritis: Such patients are not uncommon. It is essentially an autoimmune disease that causes symptoms related to cerebral infarction or cerebral ischemia because it has invaded the cerebral blood vessels. The main treatment is anti-inflammatory treatment, and the need for stent placement needs to be specifically analyzed according to the condition. 5, arterial entrapment: the onset of the disease is often accompanied by headache or/and neck pain. 6, smog: also not uncommon, some manifest as cerebral ischemia, some manifest as cerebral hemorrhage, feasible cerebral angiography to clarify the diagnosis and feel the next step of treatment according to the condition. 7, atherosclerosis: This is the same as the onset of the elderly, but the onset of the disease is a little earlier. 8, other such as cardiogenic. As young people, need a higher quality of life and have a longer life expectancy, must be clear etiology symptomatic treatment.