Elderly people with insufficient cerebral blood supply 1, eat more green fruits and vegetables, because green fruits and vegetables are rich in vitamins and folic acid. 2, eat more fibrous food, such as corn, oatmeal, and all kinds of coarse grains, and eat more cereal food. In addition, to eat more crude fiber food, such as celery and leek, can promote gastrointestinal peristalsis, prevent the occurrence of constipation in the elderly. 3, drink more hawthorn water, hawthorn water has a softening of blood vessels and lowering the role of blood lipids. 4, usually fruits should be eaten more bananas and oranges, bananas and oranges are rich in potassium, potassium has the effect of anti-atherosclerosis, as well as lowering blood pressure, and also to protect the heart. 5, Eat garlic, garlic has the function of lowering blood fat, lowering blood sugar and brain health. 6, in addition, we should eat more kiwifruit, because kiwifruit has more vitamin C content, with anti-atherosclerosis effect. 7, we should drink more water, the daily amount of water to reach 2000 ml, water is the body’s effective blood thinner, which can prevent the blood from being viscous.