Not only China people attach importance to health preservation, but foreigners also attach importance to health preservation. After decades of research, a medical expert in Germany recently warned middle-aged and elderly people that if they want to live a long and healthy life, they must make good use of the seven words "guarantee, live, transfer, participate, sleep, adjust and listen". ?

"Protecting" means keeping the brain active, so middle-aged and elderly people should use their brains more, such as reading newspapers, drawing and playing chess. Cultivate hobbies in all aspects. Research shows that the 65-year-old people who often use their brains are no worse than the 35-year-old people who don't like to use their brains. ?

"Living" means moving your fingers. As the saying goes, fingers are handy, and frequent finger movements can stimulate the two hemispheres of the brain, which has the functions of strengthening the brain, improving intelligence and delaying brain aging. ?

"Turn" is a movement that changes different properties. After long-term monotonous work or reading and writing, we should change other activities of different nature in time, so that the brain nerves can be relaxed without excessive fatigue, and the brain power can be kept in the best state. Walking and doing gymnastics are good ways to change activities. ?

"Participation" means participating in social activities and sports activities, making young friends, thus accepting the infection of youthful vitality, always maintaining a happy mood and getting rid of the isolated living environment. Active and interesting sports activities can promote the elimination of fatigue, strengthen the body and improve health. ?

6. "Sleeping" means sleeping well and ensuring adequate sleep. Middle-aged and elderly people should learn to live regularly, arrange work and rest time reasonably, and ensure 8 hours of sleep every day (about 10 hours for the elderly).