1, the diet should be low in sugar, salt and fat, and should be rich in a variety of vitamins and trace elements. 2, each meal seven minutes full, both to ensure energy supply, but also to prevent dementia. 3, often eat choline-rich foods, such as beans and their products, eggs, peanuts, walnuts, fish, lean meat and so on. 4, often eat foods rich in vitamin B, such as tofu, shellfish, kelp, liver, kidney, cabbage and radish. 5, strict smoking cessation, smoking easily lead to insufficient blood supply to the brain, brain tissue atrophy, resulting in dementia. 6, drink less or do not drink strong alcohol, alcohol can make slow reaction leading to dementia. 7, anti-constipation, intestinal bacteria can decompose undigested protein into ammonia, hydrogen sulfide, indole and other toxic substances, and be absorbed by the blood. The above toxic substances enter the brain in excess with blood circulation, which can lead to intellectual decline. 8, control the use of aluminum cookware, excessive aluminum into the body will damage the central nervous system, easy to lead to dementia. 9, open-minded, optimistic, especially more contact with teenagers, will make themselves feel young, delay brain aging. 10, maintain curiosity, have a keen interest in new things, promote brain thinking activities, prevent brain cell aging and atrophy. 11, avoid overwork and mental tension, do not lose temper, emotional stability. 12, sleep well, sleep should be deep, 7-9 hours a day is appropriate, to maintain brain cell vitality and energy. 13, can take the appropriate amount of “six flavors of dihuang pill”, “six flavors of dihuang pill” has the role of anti-aging, the prevention of Alzheimer’s disease has a special role. 14, taking estrogen, Alzheimer’s patients, more women than men, after menopause due to the decrease in estrogen levels, the incidence of significantly higher, the condition worsened. Under the guidance of a doctor to take estrogen in moderation can increase blood flow, delay the onset of dementia in women age and reduce symptoms. Prevention of Alzheimer’s simple exercise 1, every morning and evening in the fresh air in the place of brisk walking for an hour: brisk walking can improve oxygen uptake, on the prevention of Alzheimer’s disease, there is an ideal performance. 2, often do finger movement of the mind gymnastics: such as handicrafts, carving, cartography, paper cutting, typing, as well as finger playing musical instruments, etc., can effectively massage the brain, prevention of dementia. 3, often use the fingers to rotate the steel ball or walnut, or use both hands to stretch the fist movement: can enhance the flexibility of the brain, slow down the aging of brain nerve cells, can prevent dementia. 4, the implementation of the head and neck left and right rotation movement: the effectiveness of the prevention of dementia. The method is to slowly rotate the head and neck from left to right 100 times, and then from right to left 100 times.