Heart disease and stroke are both highly prevalent diseases, and there is some connection between the two. 1, heart disease can lead to stroke attack Some types of heart disease such as atrial fibrillation, valvular heart disease, such as long-term poor control, easy to cause cerebral artery embolism, its pathogenesis is: atrial fibrillation patients in the atria, especially the left ear part of the abnormal blood flow is easy to clot into a blood clot (medical term for thrombus), the thrombus is unstable and easy to dislodge, dislodged thrombus with the blood flow through the neck vessels into the cerebral vessels The clot can be easily dislodged, and the dislodged clot can enter the cerebral vasculature through the blood vessels in the neck, blocking the cerebral arteries and causing ischemic cerebral infarction, accounting for about 20% of ischemic stroke. 2. What is the chance of stroke caused by atrial fibrillation? Research studies have found that the incidence of stroke in patients with atrial fibrillation is 4.5% per year for simple atrial fibrillation; if combined with hypertension and diabetes, the incidence rises to 8%-9%; the risk of stroke or TIA is higher; the lifetime risk of stroke in patients with atrial fibrillation is 30%. This shows that it is necessary to standardize the treatment of atrial fibrillation (e.g., anticoagulation therapy, heart rate control, etc.) and to treat high-risk factors such as hypertension, hyperlipidemia, and diabetes. In addition, it is also necessary to increase the intake of fresh fruits and vegetables and coarse fiber foods, to lead a regular life, to increase physical activity appropriately, to stop smoking and limit alcohol, and to reduce work stress.