As we know, when a person reaches old age, his/her memory, calculation power and other aspects of intelligence begin to gradually decline, and in severe cases, the degree of dementia can be developed. In order to try to avoid the occurrence of this adverse effect, we should start from the following aspects to make their minds younger. (1) Often give the brain new knowledge stimulation: the elderly should often learn new knowledge, give the brain new stimulation and training, such as reading books and newspapers, learning foreign languages, computer operations and various calculations and so on. Moreover, it is necessary to take the initiative to ingest and memorize such knowledge in order to maintain the sensitivity of their minds. In addition, the elderly can also engage in their favorite and passionate cause is also to keep the brain young mystery, do not let their minds in a state of rest for a long time. (2) Physical activity and mental activity: for the elderly, in addition to moderate exercise, but also often do what they can work, study and other activities. (3) Strengthen the finger movement: through the activities of the fingers, to the cells with direct stimulation, which is very beneficial to the brain, finger activities in many ways, such as writing, painting, playing the piano and so on. (4) Often change the way to regulate the brain: such as music, walking, sports, chess and so on. (5) Ensure sufficient sleep time to relieve the excessive fatigue of the brain. (6) Maintain adequate nutrition, especially the importance of high-quality protein and multi-vitamin supplementation. (7) Take the initiative to make some young friends, communicate with each other, enlighten each other, broaden their horizons, so that they continue to make progress, more flexible mind.