This problem should be discussed from several aspects. Now the new concept of age has also been delayed. A 50-year-old man is not necessarily older than a 3 1 year-old man. There are many factors that can be restricted, such as personality, working environment, health care, etc. If all these aspects are good, then this person will not look old. If you ask me, there is little difference between 3 1 men and 50-year-old men, because many men now pay great attention to physical exercise and health preservation methods.