The first is to be healthy. As we age, all functions of the body slowly degrade, just like an old machine. Due to long-term friction, various parts are not working properly, and need to be properly maintained and maintained. Decades of experience tell us that everything is external, only health is the most important. Therefore, the first thing we should do is to take good care of and maintain our bodies, that is, be kind to ourselves. Don't always think about taking care of your children and grandchildren, etc. Children and grandchildren will have their own blessings. You have paid enough in the past few decades, and now you should think more about yourself. When things happen, start from yourself and be kind to yourself. Second, to fulfill the dream that I wanted to realize when I was young. For example, studying, various hobbies that I always wanted to learn when I was young but could not due to various reasons. For example, traveling and seeing the beautiful mountains and rivers of the motherland. Don't stay at home all the time. As long as your health allows, you can go out for more walks every year and enjoy the beauty of rivers, mountains and rivers in your limited time. Third, if you have the ability and desire, you can choose to continue working and use your remaining energy to the best of your ability. Because people who are always working appear younger and more energetic. Fourth, keep your wallet tight. If you want to live a secure life, finance is the key. Don't pin the happiness and hopes of the elderly on others, and children are no exception. Fifth, be more happy and exercise more. People often say that if you smile, ten years will pass. It is important to maintain an optimistic and cheerful mood. The other thing is to exercise more and strive to improve physical fitness and quality of life. We not only want to live a long life, but also live happily, with dignity and quality. I think possessing the above should be the greatest happiness for the elderly.