I. How is stroke diagnosed? The most common symptoms of stroke are: 1. dizziness, headache; 2. vertigo, tinnitus, deafness, diplopia; 3. unstable walking, walking gingerly, stepping on cotton wool under the feet; 4. numbness, paralysis or convulsions of the limbs; 5. distorted mouth and eyes, salivation at the corners of the mouth, slurred speech, choking and coughing; 6. confusion, drowsiness, unconsciousness; 7. changes in behavior, personality and character. If the above symptoms occur, please go to the hospital promptly. Can stroke recur? Stroke has a high recurrence rate and can recur at any time and in any place, including when you are hospitalized. Recurrence of stroke is quite common. Stroke recurrence leads to aggravation of the patient’s existing neurological deficits and a significant increase in mortality. The risk of stroke recurrence is highest within 6 months after the first stroke, and some studies set the time limit for early stroke recurrence at 90 days after the initial onset of stroke, so secondary prevention is necessary as early as possible after the first stroke. 3. How to prevent stroke? 1.Rational diet: ① vegetarian diet, choose beans and their products as they have high quality protein and good utilization rate; ② small amount of meals, limit salt to 3~5g/day, mainly easy to digest and light food, mainly breakfast and lunch, avoid overfull dinner; ③ moderate consumption of tea can be diuretic, and theophylline tannic acid can adsorb fat, thus reducing fat absorption. 2, quit smoking and alcohol; 3, proper exercise; 4, control risk factors: active treatment of hypertension, heart disease, diabetes, hyperlipidemia, etc.; 5, the use of preventive drugs: such as aspirin, Pansentin, etc.; 6, cheerful and happy mood; 7, regular review.