Stroke is a common and frequent cerebrovascular disease in middle-aged and elderly people, and it is more likely to occur in winter and summer. With the arrival of summer, hot weather is frequent, and people at risk should be more protected. 1. Avoid getting cold. Older people have hardened blood vessels and are prone to accidents in hot and cold weather, so it is important not to overdo it. 2, scientific drinking water. Older people have a low response to water shortage in the body, should use the method of several times less drinking water, a drink should not be too much, 2500ml of water per day is sufficient. 3, reasonable diet. Limit the intake of fat and cholesterol, meat and vegetables, coarse and fine mix. Supplement dairy and soy products to strengthen resistance. Regular consumption of vegetables and fruits can play a good role in preventing and treating stroke. 4, careful use of drugs. Improper use of some drugs can also lead to strokes and should be noted. For example, in summer, human blood pressure is unstable, hypertensive patients take a lot of antihypertensive drugs to make blood pressure drop, which can easily lead to ischemic stroke. 5, pay attention to the precursors. Before the onset of stroke, there are some signs: sudden difficulty in speaking and hearing others; sudden vertigo; sudden unbearable headache; sudden numbness, weakness, mouth distortion, drooling, etc. One side of the face or upper and lower limbs must pay attention to. 6.Strengthen health care. Older people should keep a happy mood, do a moderate amount of outdoor activities in the morning and evening, and quit smoking and drinking. In conclusion, the threat of stroke to human life and health is very serious, but if we can clearly understand its risk factors and actively prevent it, it will reduce the incidence of stroke to a certain extent.