The first is good health. With the growth of age, all the functions of the body are slowly deteriorating, just like an old machine. Due to long-term friction, all parts are not very bright and need good maintenance. Decades of experience tell us that everything is outside the body, and only health is the most important thing. Therefore, our first priority is to take good care of our health, that is, to be kind to ourselves. Don't always think about taking care of the children's grandchildren and so on. Children and grandchildren have their own blessings. The previous decades have been enough. Now you should think more about yourself. When something happens, start from yourself and be nice to yourself. Second, fulfill the dream you wanted to realize when you were young. For example, learning, all kinds of hobbies that I always wanted to learn when I was a child, but I couldn't learn for various reasons. For example, travel and see the beautiful rivers and mountains of the motherland. Don't always stay at home, as long as your body allows, you can go out for a walk every year and enjoy the beautiful scenery of rivers and mountains in a limited time. Third, if you have the ability and desire, you can also choose to continue working and try your best to exert the residual heat. Because people who have been working look younger and more energetic. Fourth, tighten your wallet. Economy is the key to a safe life. Don't pin the happiness and hope of the elderly on others, and children are no exception. Fifth, be happy and exercise more. It is often said that after ten years, it is important to smile and be optimistic and cheerful. The other is to exercise more and strive to improve physical fitness and quality of life. We should not only live long, but also live happily, with dignity and quality. I think having the above should be the greatest happiness of the elderly.