This Weibo originally came from a study whose results seem to support that people who shave more often live longer, but this study itself is not a causal investigation. For example, people who don't shave often are those with irregular lives, and those who shave often are those with regular lives. It is a view recognized by the mainstream medical community that the length of life is related to living habits.

Therefore, the truth may be that the quality of living habits is related to the length of life, and the frequency of shaving is a manifestation of the regularity of life.