Today, as the development of the medical, people can slow down their aging. As for the celebrities, they use the developed technology to keep young, seeing their unchangeable faces in the screen for so many years, the audience also want to imitate the celebrity, they believe that by using the developed technology, they can keep young all the time. While in my opinion, the way to keep young is to hold a young heart, some people look young outside, but in their hearts, they are old enough and refuse to keep pace with the time. While for another group, even they have wrinkles, they are curious about all the things and are willing to change. My grandpa is old, but he knows all the fashionable things, sometimes I have to ask him for the new things. The young heart is the way to keep young forever.